共查询到19条相似文献,搜索用时 406 毫秒
1.
2.
3.
优质食品酶是食品生物加工的核心,是食品制造产业的“芯片”。我国食品酶领域的应用基础研究薄弱,70%以上的酶制剂市场被国际公司垄断,优质食品酶长期受制于人,难以支撑目前食品行业提质升级的发展需求。在此背景下,本文聚焦新型食品酶高效筛选和分泌表达的生物学基础,高端高值食品酶的催化机制,食品酶催化性能改造的结构基础,食品酶创制高端配料的内在规律及作用机制等关键科学问题,综述优质食品酶的催化机制及在高端配料创制方面的应用基础,旨在为食品高端配料的酶法创制提供理论和实践指导。 相似文献
4.
5.
6.
7.
8.
9.
10.
过氧化物酶(peroxidase, POD)是一类大量存在于自然界及生物体内的氧化还原酶。其家族成员众多,但都可以催化以过氧化氢(H2O2)作为底物的氧化反应。现有研究表明可以通过利用过氧化物酶的氧化特性,来提高功能食品的质量属性和营养特性。而辣根过氧化物酶作为过氧化物酶家族的一员,近些年来被大量研究。尤其是在食品研究开发中,有很多都是通过使用辣根过氧化物酶去催化蛋白质或淀粉等食品分子来改善食品本身的性质或获得更合适的食品胶体,因此值得更深层次的挖掘其应用价值及市场。本文在介绍过氧化物酶的结构、催化机理及影响其催化的关键因素基础上,分析了过氧化物酶催化对食品分子结构和性质的影响,综述了近年来过氧化物酶在食品分子及其胶体体系修饰中的一些应用。 相似文献
11.
12.
超高压作为一种非热加工技术,在谷物加工方面,主要用作淀粉改性、蛋白质改性、功能成分提取、降低致敏性、延长贮藏期等。淀粉作为谷物的主要营养成分,不仅为人类提供主要的能量来源,还与面团形成、糊化、老化、食品最终食用品质和保质期等密切相关。天然淀粉由于易老化、抗剪切能力差等不足,限制了淀粉的应用范围。利用超高压对淀粉进行改性处理,改善淀粉的加工性能,对于食品加工具有重要意义。本文综述了超高压处理对谷物类淀粉结构、颗粒特性、理化性质、糊化老化特性、消化特性等方面的影响及作用机理。 相似文献
13.
肉类保藏技术(七) 高静压技术对肉类品质的影响 总被引:1,自引:2,他引:1
高静压技术是目前关注较多的食品物理加工技术之一。本文介绍了高静压技术原理,综述了高静压技术对肉类品质的各种影响,总结了一些关于改善高静压处理效果的措施,最后还对高静压技术在肉类工业中的应用作了展望。 相似文献
14.
15.
高静水压处理技术是一种不需加热的食品保藏技术,将它与其它食品保藏技术联合应用不仅可以提高食品的安全性和稳定性,还可最大限度地保护食品中的营养成分.本文综述了高静水压杀菌与加热、pH值、抗菌素、气调包装、二氧化碳、脉冲电场及辐射联合在食品中的应用和研究进展. 相似文献
16.
Ergin Murat Altuner Özlem Tokuşoğlu 《International Journal of Food Science & Technology》2013,48(10):1991-1997
Anthocyanins and flavonols are types of phenolic compounds. Previous researches showed that phenolic compounds are relevant to the quality of plant‐derived foods and beverages. Any food‐processing technologies, which can preserve phenolic compounds after processing, should be taken into account for increasing the food quality. High hydrostatic pressure processing (HHPP) is a novel nonthermal process. There are some researches about the effect of HHPP on total phenolic content, total monomeric anthocyanins, kaempferol, myricetin and quercetin contents of berry fruits and berry juices in the literature. These studies showed that HHPP could possibly have a success potential in increasing the extraction, retention and stability of anthocyanins and flavonols contents of berry fruits and berry juices by preserving phenolic compounds after food processing. The aim of this review is to put forward how high hydrostatic pressure processing affects extraction, retention and stability of anthocyanins and flavonols of berry fruits and juices. 相似文献
17.
YU-LONG GAO 《Journal of Food Safety》2010,30(1):124-140
The objective of this investigation was to evaluate the efficacy of high hydrostatic pressure and mild heat against spores of Geobacillus stearothermophilus AS 1.1923 in model food systems. The pressure-processing conditions were fixed at 625.0 MPa and 86C for 14 min, which have been determined as the optimum processing conditions considering six-log-cycle reductions of G. stearothermophilus spores. Based on the results, response surface methodology was performed in the present investigation, the effects from food ingredients, such as soybean protein, soybean oil and sucrose, as well as pH of the food matrix on the inactivation of G. stearothermophilus spores by high pressure and mild heat was explored, and a quadratic predictive model for the effects of food ingredients and pH on the reduction levels of G. stearothermophilus spores by high-pressure processing was built. The predictive model is significant because the level of significance was P < 0.0001 and the calculated F value is much greater than the tabulated F value. Moreover, the adequacy of the model equation for predicting the reduction of G. stearothermophilus spores was verified effectively.
This paper clearly demonstrated the contributions to pressure resistance from food ingredients such as soybean protein, soybean oil, sucrose and pH of the food matrix to the inactivation of Geobacillus stearothermophilus spores by high hydrostatic pressure and mild heat. The predictive model for predicting the reduction of G. stearothermophilus spores in model food systems was built which can be beneficial to targeted process development toward high-pressure sterilization of foods. 相似文献
PRACTICAL APPLICATIONS
This paper clearly demonstrated the contributions to pressure resistance from food ingredients such as soybean protein, soybean oil, sucrose and pH of the food matrix to the inactivation of Geobacillus stearothermophilus spores by high hydrostatic pressure and mild heat. The predictive model for predicting the reduction of G. stearothermophilus spores in model food systems was built which can be beneficial to targeted process development toward high-pressure sterilization of foods. 相似文献
18.
《Food Reviews International》2013,29(3):251-270
Numerous why protein products (WPP) have been developed as excellent food ingredients with unique functional properties. However, the functional properties of WPP are affected by several compositional and processing factors. Recently, novel processing technologies such as high hydrostatic pressure, ultrasound, extrusion and tribomechanical activation have been used to modify the functional properties of WPP. Also, WPP have been used as delivery systems for functional ingredients and in edible films. The present paper reviews the latest developments in the role of different factors on the functional properties of WPP with emphasis on novel processing technologies, and interaction with other food ingredients 相似文献
19.
超高压作为一种新型的食品非热加工技术, 处理过程温度低、对食品营养成分破坏小,能在有效杀菌的同时显著提升加工食品品质,是未来食品加工技术发展的热点方向。近年来,超高压技术被广泛应用于食品加工,并在国内外实现了商业化应用。杀菌作为超高压加工食品过程中最重要的环节,是保证食品安全、延长产品货架期的关键点,因此一直是本领域研究的重点。本文介绍了超高压技术的设备和作用原理, 总结了超高压或超高压联合其他手段对微生物营养体、细菌芽孢、真菌孢子及病毒的杀灭效果和杀菌机制, 归纳了超高压杀菌中存在的杀菌机制不清、缺乏杀菌指示菌以及深休眠芽孢等问题, 以期为进一步完善超高压杀菌理论、推动超高压技术在食品加工中的产业化应用指明方向。 相似文献