Potential of grape byproducts as functional ingredients in baked goods and pasta

Wine making industry generates high quantities of valuable byproducts that can be used to enhance foods in order to diminish the environmental impact and to obtain more economic benefits. Grape byproducts are rich in phenolic compounds and dietary fiber, which make them suitable to improve the nutritional value of bakery, pastry, and pasta products. The viscoelastic behavior of dough and the textural and the sensory characteristics of baked goods and pasta containing grape byproducts depend on the addition level and particle size. Thus, an optimal dose of a finer grape byproducts flour must be found in order to minimize the negative effects such as low loaf volume and undesirable sensory and textural characteristics they may have on the final product quality. In the same time, an enrichment of the nutritional and functional value of the product by increasing the fiber and antioxidant compounds contents is desired. The aim of this review was to summarize the effects of the chemical components of grape byproducts on the nutritional, functional, rheological, textural, physical, and sensory characteristics of the baked goods and pasta. Further researches about the impact of foods enriched with grape byproducts on the human health, about molecular interactions between components, and about the effects of grape pomace compounds on the shelf life of baked goods and pasta are recommended.     

Applications of imaging systems for the assessment of quality characteristics of bread and other baked goods: A review

One of the most widely researched topics in the food industry is bread quality analysis. Different techniques have been developed to assess the quality characteristics of bakery products. However, in the last few decades, the advancement in sensor and computational technologies has increased the use of computer vision to analyze food quality (e.g., bakery products). Despite a large number of publications on the application of imaging methods in the bakery industry, comprehensive reviews detailing the use of conventional analytical techniques and imaging methods for the quality analysis of baked goods are limited. Therefore, this review aims to critically analyze the conventional methods and explore the potential of imaging techniques for the quality assessment of baked products. This review provides an in-depth assessment of the different conventional techniques used for the quality analysis of baked goods which include methods to record the physical characteristics of bread and analyze its quality, sensory-based methods, nutritional-based methods, and the use of dough rheological data for end-product quality prediction. Furthermore, an overview of the image processing stages is presented herein. We also discuss, comprehensively, the applications of imaging techniques for assessing the quality of bread and other baked goods. These applications include studying and predicting baked goods' quality characteristics (color, texture, size, and shape) and classifying them based on these features. The limitations of both conventional techniques (e.g., destructive, laborious, error-prone, and expensive) and imaging methods (e.g., illumination, humidity, and noise) and the future direction of the use of imaging methods for quality analysis of bakery products are discussed.     

Impact of whole cereals and processing on type 2 diabetes mellitus: a review

Abstract

The prevalence of type 2 diabetes mellitus (T2DM) has been increasing throughout the world. The cereals, as the high carbohydrate food and dominant portion of diet, have crucial impacts on glycemic control, especially for T2DM. Both components in whole cereals and processing are closely related to their glycemic response. The consumption of whole cereals is shown to reduce the risk of T2DM. The starch characteristic of cereal determines its hydrolysis rate and glycemic response. The soluble and insoluble dietary fiber, phenolic compounds, and other bioactive constituents may slow down the starch hydrolysis. Besides, they have other physiological mechanisms in regulation of T2DM, such as amelioration of lipid disorder, antioxidant, anti-inflammation, and regulation of gut microbiota, which contribute to further improvement of metabolic symptoms. Cereals are subjected to processing before consumption, which is involved in mechanical force, bioprocessing, thermal treatment, and cooling. The processing induces changes in nutritional composition and physical structure compared to the raw kernels. The key influences of processing on glycemic response are the starch gelatinization and starch retrogradation. However, physical structure of cereal and interactions among starch and other compounds greatly contribute to various glycemic responses of cereal products. This review highlights recent findings on the influences of both bioactive constituents and processing on the antidiabetic effects and physiological properties of cereals.     

Integrated processing of plant-derived waste to produce value-added products based on the biorefinery concept

BackgroundPlant-derived wastes from agriculture, processing, distribution, and retail are generated in large quantities. The majority of the wastes are underutilized and may cause severe environmental problems if not properly handled. The plant-derived wastes are usually rich in lignocellulose and other valuable compounds including protein, fat, sugar, and phytochemicals. Valorization of these compounds in food waste not only reduces environmental concerns but also improves sustainability and economic competitiveness of agro-food industries.Scope and approachThis review paper first discussed different phases of the biorefinery concepts and their associated applications, and then introduced recent advances in the integrated processing of plant-derived waste for producing various value-added products. Finally, techno-economic, environmental, and social assessments along with relevant policies were introduced and discussed.Key findings and conclusionsDuring the past ten years, research attentions focused on integrated utilization of plant-derived waste to produce various products have flourished. Compared to production of a single component for food waste valorization, integrated processing of food waste via a combination of different novel technologies to produce multiple products based on a biorefinery concept has significant advantages, including full utilization of feedstocks, minimization of waste generation during processing, synergy effects of different technologies, and diversification of the revenues by covering multiple markets. With the rationale design of biorefinery processes, underutilized plant-based wastes can be valuable resources for the sustainable production of food, chemicals, and biofuels. However, detailed economic, environmental, and social analyses for the biorefinery process are still needed in the future.     

加工条件及关键组分对烘焙食品品质的影响

烘焙食品市场规模巨大且保持着高速增长的趋势。原料组成、加工条件等因素的变化都会对烘焙制品品质产生影响,了解影响烘焙食品质量的因素,对高品质烘焙食品的加工和生产具有重要意义。本文综述了发酵条件、加工工艺、原料组成对烘焙食品品质的影响,其中涉及了对特殊营养成分添加或者低糖、无糖等功能型烘焙食品的研究,这些新型烘焙食品更符合当下人们对营养健康饮食理念的追求,以期为高品质烘焙食品的设计和生产提供参考,促进烘焙食品行业的发展和升级。     

Dietary compounds and traditional Chinese medicine ameliorate type 2 diabetes by modulating gut microbiota

Abstract

Diabetes mellitus (DM) and its complications are major public health concerns which strongly influence the quality of humans’ life. Modification of gut microbiota has been widely used for the management of diabetes. In this review, the relationship between diabetes and gut microbiota, as well as the effects of different dietary components and traditional Chinese medicine (TCM) on gut microflora are summarized. Dietary compounds and TCM possessing bioactive components (fiber and phytochemicals) first change the composition of gut microbiota (inhibiting pathogens and promoting the beneficial bacteria growth) and then influence the production of their metabolites, which would further modify the intestinal environment through inhibiting the production of detrimental compounds (such as lipopolysaccharide, hydrogen sulfide, indol, etc.). Importantly, metabolites (short chain fatty acids and other bioactive components) fermented/degraded by gut microbiota can target multiple pathways in intestine, liver, pancreas, etc., resulting in the improvement of gut health, glycemic control, lipids profile, insulin resistance and inflammation. Furthermore, understanding the interaction between different dietary components and gut microbiota, as well as underlying mechanisms would help design different diet formula for the management of diabetes. Further researches could focus on the combination of different dietary components for preventing and treating diabetes, based on the principle of “multiple components against multiple targets” from the perspective of gut microbiota.     

Hempseed as a nutritious and healthy human food or animal feed source: a review

Hempseed products are projected to receive great potentials due to the rapid growth in the US market. Industrial hemp has been an important crop for food, fibre and medicine applications. Hempseed products can be used as nutraceutical supplements and functional foods for human and can be applied for animal feed. This review provides a comprehensive summary of nutritional quality and health benefits of hempseed which is attributed to high levels of essential fatty acids and other PUFAs in the oil, with a rich source of essential amino acids in highly digestible protein. This review examines the impact of extraction methods on oil yield and bioactive compounds, nutrition value, and food application of hemp protein-extracted products, including meal, protein isolate and protein concentrate. Recent research related to the understanding chemical composition, nutritional value, health benefits, processing impact, functional properties of hempseed products, and their application for food and feed is presented.     

Review of micro- and nanoplastic contamination in the food chain

Whereas the dramatic environmental impact of plastic waste rightfully receives considerable attention by scientists, policy makers and public in general, the human health impact of micro- and nanoplastics contamination of our food and beverages remains largely unknown. Indeed, most studies aim at understanding the environmental impact rather than the human health impact of a possible exposure to micro- and nanoplastics. In addition, these papers generally lack a methodological, standardised approach. Furthermore, some studies focus on the damage to and contamination level of animal species collected from the wild environment, and others investigate the rate and biology of microplastic uptake of animals fed with microplastics in laboratory. This review aims at understanding human exposure. Since there is, with few exceptions, no evidence available on the presence of micro- and nanoplastics in a normal diet, this study takes an indirect approach and analyses peer-reviewed publications since 2010 that document the presence of micro- and nanoplastics in those animals (more than 200 species) and food products that are part of the human food chain and that may thus contribute directly or indirectly to the uptake of micro- and nanoplastics via the human diet. It also addresses the question of the definitions, the methodologies and the quality criteria applied to obtain the reported results. This review suggests that, beyond a few estimations and comparisons, precise data to assess the exact exposure of humans to micro- and nanoplastics through their diet cannot be produced until standardised methods and definitions are available.     

Applications of chia (Salvia hispanica L.) in food products

BackgroundThe outstanding nutritional and technological properties lead to innovative applications of chia (Salvia hispanica L.) in food products.Scope and approachThe aim of this contribution is to give an overview of the various food application approaches for chia. The nutritional and technological properties of chia as well as its technological and innovative utilization are presented. Examples for the various applications in food products are given in five main topics: baked goods, dairy products, meat and fish products, gluten-free products and other products such as functional food, hydrocolloid and thickener.Key findings and conclusionsBesides the nutritional benefits of chia incorporation in food products the technological effects are emphasized very often. Summarized in five main topics, most authors conclude that chia is a valuable food ingredient for functional food development. The application of chia in baked goods for example is beneficial not only to improve the nutritional value but acting as hydrocolloid or substitute egg, fat or gluten. The increase of oil stability and applications as food thickener in novel food applications are of high importance too. As different chia fractions give various options for applications the utilization of chia for further food products will increase significantly in the future.     

Edible coatings as osmotic dehydration pretreatment in nutrient-enhanced fruit or vegetable snacks development: A review

Edible coatings (ECs) are thin layers applied on food to protect it and improve quality. They are made from bio-based materials such as polysaccharides, proteins, lipids, or their composites. The incorporation of functional agents, such as bioactive compounds, vitamins, or antimicrobials into the EC, has been investigated to control the shelf life of many food products from horticulture ones to processed food. Osmotic dehydration (OD) as a mild technology may also positively impact the availability of innovative fruit snacks and consequently influence consumer health. Combination of the EC with the OD aims to remove water through the semipermeable membrane while limiting the transfer of solutes from the dehydrated tissue and in the opposite direction from the osmotic solution to the food. The development trend of the snack market is expanding, especially with health-promoting properties. Consumers pay increasing attention to quality of food and its beneficial effects on health. This review attempts to provide the advancement of recent studies on the application of the EC before the OD of different fresh or fresh-cut fruit and vegetables. A fundamental theory related to the methodology of creating the EC, their composition, and the influence on the physicochemical properties of products that are osmo-dehydrated to a medium water content or additionally dried to a low water content have been described. Efforts have been exerted to introduce hydrocolloids used in the production of the EC, including new sources of biopolymers such as agricultural waste and by-products. The perspectives of using ECs in the technology of producing pro-healthy snacks are emphasized.     

Potential for Value-Added Utilization of Bamboo Shoot Processing Waste—Recommendations for a Biorefinery Approach

Bamboo shoot processing produces substantial quantities of wastes in China and other parts of the world, with estimates of up to 70% of the harvested bamboo shoots being discarded as waste biomass. The solid waste residues that are generated as processing by-products consist of the outer sheath and basal section of the bamboo shoot, and wastewater is also produced, all of which pose a significant environmental burden. In comparison to the edible bamboo shoot tips, data on the composition of bamboo shoot processing residue (BSPR) are comparatively scarce. The tender shoots are rich in nutrients and bioactive compounds that are associated with health benefits against many chronic and degenerative diseases, and there is potential for these compounds to also be present in BSPR. Therefore, this paper reviews the current literature available on BSPR composition from both English and Chinese journals, for comparison with the tender bamboo shoot. From this information, the potential of using BSPR as a cheap source of valuable nutrients and bioactive compounds for value-added products (e.g., food additives, functional foods, and pharmaceuticals) is discussed. To maximize the value from BSPR and reduce its environmental impact as a waste, a systematic biorefinery approach for waste valorization is recommended.     

Non-waste technology through the enzymatic hydrolysis of agro-industrial by-products

BackgroundOne of the major challenges facing the world at present is the utilisation of by-products. European food industries generate millions of tonnes of by-products annually. Fruit and grain processing industries do not fully utilise potentially valuable raw materials (peels, husks, seeds, stones, bran) that contain a significant amount of dietary fibre and antioxidants. According to recent research, due to the complexity in structure of agro-industrial by-products, both lipophilic and hydrophilic compounds integrated into the matrix and furthermore they are linked with various macromolecules. These interactions have a great influence on bioavailability and hence antioxidant ability of biologically active compounds present in by-products. At present, one major concern is the development of efficient and green technology for the degradation of starch and non-starch polysaccharides presented in by-products, thus contributing to their reduction, as well as long-term improvements in environmental quality and enhancement of extractability of antioxidant compounds.Scope and ApproachThis review summarizes the research progress on the enzymatic hydrolysis of by-products, gives a brief insight into the current state of the amount of the by-products, and describes one possible method of waste recycling.Key findings and conclusionsProcessing of by-products, using enzymatic hydrolysis is promising technique for prebiotic substrates development. Moreover, enzymatic hydrolysis is able to increase the extractability of polyphenols including non-extractable proanthocyanidins from food matrix with no utilisation of organic solvents, nor any other toxic chemicals.     

Emerging opportunities for the effective valorization of wastes and by-products generated during olive oil production process: Non-conventional methods for the recovery of high-added value compounds

BackgroundA large amount of wastes and by-products are generated during olive oil production process. Traditionally, these products have been considered as a problem. However, they constitute a great source of high-added value compounds, which have the potential to be used as food additives and/or nutraceuticals. Therefore, valorization of wastes and by-products from food industry kills two birds with one stone and addresses both the use of waste and by-products and societal health, thus greatly contributing for a sustainable food chain from an environmental and economical point of view.Scope and approachIn the present review, current and new insights in the recovery of high-added value compounds from wastes and by-products generated during olive oil production process will be discussed. Several conventional (solvent, heat, grinding) and non-conventional methodologies (ultrasounds, microwaves, sub- and supercritical fluid extractions, pressurized liquid extraction, pulsed electric fields and high voltage electrical discharges) have been investigated for the recovery of high-added value compounds (polyphenols, fatty acids, coloring pigments (chlorophylls and carotenoids), tocopherols, phytosterols, squalene, volatile and aromatic compounds) from wastes and by-products generated during olive oil production process.Key findings and conclusionsNon-conventional technologies can constitute a promising tool to recover high-added value compounds from olive oil wastes and by-products. However, the content of these valuable compounds can vary greatly depending on the matrix and the efficiency in the recovery of these compounds is highly dependent of the technology used for extraction.     

Managing the risk of staphylococcal food poisoning from cream-filled baked goods to meet a food safety objective

The International Commission on Microbiological Specifications for Foods (ICMSF) has recently proposed a scheme for the management of microbial hazards for foods that involves the concept of food safety objectives (FSOs). FSOs are intended to specify the maximum levels of hazardous agents required to meet a given public health goal. This scheme offers flexibility for the food industry in terms of allowing the use of alternative but equivalent means for achieving a given FSO. This paper illustrates the application of the ICMSF model via the analysis of the microbiological hazard of Staphylococcus aureus in cream-filled baked goods. Cream-filled baked goods have a notorious history as vehicles for foodborne illness, particularly staphylococcal food poisoning. Although the numbers of cases reported in the United States and Europe have declined in recent years, staphylococcal food poisoning may be much more common than is recognized, particularly in other countries. The ICMSF principles for setting FSOs and the use of performance criteria, process criteria, and validation in relation to hazard analysis critical control point and good hygiene practice plans for managing S. aureus in cream-filled baked goods are described.     

Industrial applications of crustacean by-products (chitin,chitosan, and chitooligosaccharides): A review

BackgroundFood processing produces large quantities of by-products. Disposal of waste can lead to environmental and human health problems, yet often they can be turned into high value, useful products. For example, crustacean shell wastes from shrimp, crab, lobster, and krill contain large amounts of chitin, a polysaccharide that may be extracted after deproteinisation and demineralization of the exoskeletons.Scope and approachThis review summarizes the current state of knowledge of these crustacean shellfish wastes and the various ways to use chitin. This biopolymer and its derivatives, such as chitosan, have many biological activities (e.g., anti-cancer, antioxidant, and immune-enhancing) and can be used in various applications (e.g., medical, cosmetic, food, and textile).Key findings and conclusionsDue to the huge waste produced each year by the shellfish processing industry and the absence of waste management which represent an environmental hazard, the extraction of chitin from crustaceans’ shells may be a solution to minimize the waste and to produce valuable compound which possess biological properties with application in many fields. As a food waste, it is important to also be aware of the non-food uses of these wastes.     

Factors influencing the sensory perception of reformulated baked confectionary products

Abstract

Baked confectionary products such as cakes, biscuits, cookies, and muffins are consumed globally as they are coveted for their sensory attributes. However, due to their high sugar and fat content, baked confectionary products are also considered major contributors to the prevalence of obesity and the rise of type II diabetes in industrialized nations and in emerging economies. Both sugar and fat have multiple roles in baked confectionary products in terms of structure, texture, shelf-life, aroma, and taste. Considerable efforts have been undertaken to modify product formulations to decrease sugar and fat contents without compromising on product or sensory quality, and this review focuses on relevant research undertaken to date. Aspects addressed include the impact of decreasing sugar and fat content, the impact of sugar or fat substitutes in relation to sensory perception, with a focus on the role of key product constituents, processing parameters, flavor reactions, aromatic compounds, and flavor chemical and sensory techniques.     

Novel Approaches in Gluten‐Free Breadmaking: Interface between Food Science,Nutrition, and Health

The evidence that celiac disease is one of the commonest food intolerances in the world is driving an increasing demand for gluten‐free foods. However, gluten is a structure‐building protein essential for formulating leavened baked goods. Therefore, obtaining high‐quality gluten‐free bread (GFB) is a technological challenge. This review focuses on contemporary approaches in gluten‐free baking that allow improvements at the structure, texture, acceptability, nutritive value, and shelf life of GFB. Gluten‐free breadmaking is a relatively new, emerging research topic that is attracting worldwide attention in order to develop different kinds of GFB, including regional varieties. Several approaches have been used to understand and improve GFB systems by evaluating different flours and starch sources, ingredients added for nutritional purposes, additives, and technologies or a combination of these elements. Some studies aimed to assess or improve GFB's technological or nutritional properties, while others had multiple objectives. Several studies used food science tools in order to improve technological and sensory quality of GFB, together with nutritional value. Some GFBs are vehicles of nutrients and bioactive compounds. Furthermore, extensive research on interfacing food science, nutrition, and health is needed so that a GFB with both good technological and nutritional properties can be prepared and made more available to those with celiac disease, which will help them adhere to a strict gluten‐free diet, increase social inclusion, and improve their quality of life.     

Critical assessment of formulation,processing and storage conditions on the quality of alveolar baked products determined by different analytical techniques: A review

BackgroundSensorial, nutritional and microbiological deteriorations of alveolar bakeries are mostly hazardous for producers that are threatened by the loss of consumers’ confidence and market shares. These alterations induce loss of the freshness, which is the first feature of purchasing. Hence, monitoring the quality of baked products has been determined by using different analytical techniques (e.g., rheology, chromatography, sensory analyses, etc.). To date, these tools are used as reference ones, but, they come under criticism due to their destructive and sophisticated aspects. Therefore, many newest techniques have been investigated in order to provide reliable data in a short time and a cheap way without the need of samples preparation.Scope and approachThis review will discuss firstly the techno-functional properties of the lipid component in the formulation of alveolar products and attempts of its reduction and/or substitution. Then, the optimization of bakeries processing will be presented. The macroscopic and molecular techniques commonly used for monitoring quality, freshness and alteration of the alveolar products are finally reviewed.Key findings and conclusionsThe potentialities of vegetable oils combined with fibers to reduce the saturated fatty acids content in recipe are highlighted. This review provides also a comprehensive approach for the optimization of alveolar goods processing in order to maintain the nutritional quality of the final product. Regarding quality and freshness control, this review emphasizes the complementarity between traditional methods and innovative ones, including spectroscopic techniques in combination with chemometric tools for understanding the molecular and macroscopic structure of alveolar baked products.     

全麦粉及制品：营养组成、健康功效与品质改良（网络首发、推荐阅读）

谷物碾磨技术的发展促进了粮食加工的精细化进程,但长期精白面制品的摄入造成了营养不均衡,高血压、糖尿病和心脑血管疾病的发病率逐年增加。全麦粉含有小麦籽粒中的所有组分,富含膳食纤维、维生素和矿物质等生理活性物质,具有降低血糖、抗氧化、清除自由基和增强免疫力等功效,因此以全麦粉制成为原料制成的全麦食品是改变膳食结构,改善健康水平的理想选择。对比了全麦粉与精白面粉的营养组成差异,总结了全麦粉的特征营养素如膳食纤维、酚酸、不饱和脂肪酸、植物甾醇、木脂素等,从减重、预防2型糖尿病和干预心脑血管疾病等三个方面综述了全麦食品的健康功效,还对全麦烘焙类、蒸煮类和油炸类食品的品质改良方法进行了总结,以期为全麦食品的继续开发和推广提供理论和实践参考。     

Sourdough and cereal fermentation in a nutritional perspective

Use of sourdough is of expanding interest for improvement of flavour, structure and stability of baked goods. Cereal fermentations also show significant potential in improvement and design of the nutritional quality and health effects of foods and ingredients. In addition to improving the sensory quality of whole grain, fibre-rich or gluten-free products, sourdough can also actively retard starch digestibility leading to low glycemic responses, modulate levels and bioaccessibility of bioactive compounds, and improve mineral bioavailability. Cereal fermentation may produce non-digestible polysaccharides, or modify accessibility of the grain fibre complex to gut microbiota. It has also been suggested that degradation of gluten may render bread better suitable for celiac persons.The changes in cereal matrix potentially leading to improved nutritional quality are numerous. They include acid production, suggested to retard starch digestibility, and to adjust pH to a range which favours the action of certain endogenous enzymes, thus changing the bioavailability pattern of minerals and phytochemicals. This is especially beneficial in products rich in bran to deliver minerals and potentially protective compounds in the blood circulation. The action of enzymes during fermentation also causes hydrolysis and solubilisation of grain macromolecules, such as proteins and cell wall polysaccharides. This changes product texture, which may affect nutrient and non-nutrient absorption. New bioactive compounds, such as prebiotic oligosaccharides or other metabolites, may also be formed in cereal fermentations.