芒果营养成分及保健功效研究进展

芒果含有丰富的膳食纤维、蛋白质、植物多糖、维生素、矿物质、黄酮类化合物及没食子酸等营养成分,具有预防心脑血管疾病、抗癌、抗衰老、清除毒素等保健功效.综述芒果的营养成分及其保健功效,为芒果深加工产品的研究开发提供理论依据.     

浅谈啤酒的营养价值及特殊保健功效

从啤酒的营养成分和啤酒的特殊保健功效等方面进行了阐述，主要分析了啤酒的特殊保健功效，为进一步开发功能性啤酒提供理论依据。     

果醋的保健功效及加工工艺研究进展

文章从不同侧面介绍了果醋的营养成分及保健功效，介绍了几种适合加工生产果醋的水果及加工生产工艺，简述了当前果醋加工的进展情况。     

红葡萄酒多酚的保健功效

国外研究表明，葡萄酒多酚有防止LDL氧化的作用，可预防动脉硬化；抑制血小板凝集，减少血栓病危险。红葡萄可抑制螺旋菌的增殖，有抗肿瘤作用，其中含有白藜芦醇，有抑制癌的效果，可防止老年性痴呆、泊金森氏综合症等神经性疾病。     

火龙果的营养保健功效及开发利用

本文介绍火龙果的营养及药用价值，突出其保健功能，并对其在我国的开发潜力进行分析。     

啤酒的营养价值与保健功效

<正> 啤酒是一种营养价值很高的国际通用性饮料。在国际酒类消费中居第一位。1972年第九届世界营养食品会议曾推荐啤酒为营养食品之一。随着营养食品专家、科学工作者分析研究的不断深入,啤酒对于人体的保健作用亦愈来愈受到世人的瞩目。     

洋葱保健功效研究

洋葱,又名球葱、圆葱、玉葱、葱头,毛葱,栽培历史已有5000多年,20世纪初才传入我国。现在,洋葱在我国分布很广,南北各地均有栽培,而且种植面积还在不断扩大,是目前我国主栽蔬菜之一。我国已成为洋葱年产量最大的4个国家（中国、印度、美国、日本）之一。     

纳豆的保健功效及应用前景

纳豆是豆类等经枯草杆菌发酵制成的,含有蛋白质、脂肪、碳水化合物、维生素及矿物质等多种营养成分,同时含有多种酶类、多糖、不饱和脂肪酸等多种功效因子,具有溶解血栓、抗癌症、抗菌消毒等多种保健功效.近些年对于纳豆的研究应用越发广泛,对纳豆的保健功效及开发应用情况进行总结,希望对纳豆发展提供一定参考.     

木材对人体健康的保健功效

1．研究木材对人体健康的保健功效的意义 20世纪以来，世界各国科技进步，经济腾飞，人民生活水平不断提高。但环境污染加剧，各种传染病不断出现，造成大量的人员死亡。据世界卫生组织统计，全球每年因传染病死亡人数在25万以上。因此，各国政府和人民对健康的保护越来越关注。     

红曲霉的保健功效及工艺开发

本文主要从红曲霉的生，产生的代谢产物等方面进行了概述，对红曲霉的保健功效及工艺开发作了介绍。     

Purification and properties of cysteine protease from rhizomes of Curcuma longa (Linn.)

BACKGROUND: Turmeric rhizome (Curcuma domestica Linn.) contains proteases and has proteolytic activity. Curcumin from turmeric rhizomes has been used for healing manu ailments, including cancer have been used for healing many ailments, including cancer. The purpose of this study was to purify turmeric protease and to research their biochemical characteristics. RESULTS: Cysteine protease from C. domestica has been purified to homogeneity using acetone precipitation followed by preparatory native polyacrylamide gel electrophoresis (PAGE). This protocol resulted in six fold purification with 28% final recovery. The purified turmeric protease showed a prominent single peak and band on high‐performance liquid chromatography and sodium dodecyl sulfate–PAGE, respectively, and an estimated molecular weight of 43 KDa, and exhibited optimal activity between 37 and 60 °C. The protease activity of the turmeric protease was significantly inhibited by iodoacetic acid. The turmeric protease had higher alanine and glutamate content and cleaved synthetic peptides N‐Cbz‐Ile‐Pro and N‐Cbz‐Phe‐Leu in a time‐dependent manner. Peptide mass fingerprint using matrix‐assisted laser desorption/ionization–time of flight mass spectroscopy revealed peptide matches to proteasome subunit alpha type 3 of Oryza sativa ssp. japonica (Rice). The turmeric protease showed antifungal activity at 10 µg mL^?1 towards pathogens Pythium aphanidermatum, Trichoderma viride and Fusarium sp. CONCLUSION: Cysteine addition significantly activated turmeric protease. The protease inhibition test suggested that turmeric protease belonged to the cysteine type. The biochemical characteristics of turmeric protease described in this paper can provide useful information for potential end uses of turmeric protease for pharmaceutical industry applications such as therapeutics. Copyright © 2009 Society of Chemical Industry     

Curcuma longa and Curcuma mangga leaves exhibit functional food property

Although leaves of Curcuma mangga and Curcuma longa are used in food preparations, the bioactive components in it are not known. In this study, antioxidant, antiinflammatory and anticancer activities of leave extracts and its isolates were investigated using established bioassay procedures in our laboratory. The leaf extracts of both plants gave similar bioassay and chromatographic profiles. The methanolic and water extracts of C. mangga (CMM and CMW) and C. longa (CLM and CLW), at 100 μg/mL, inhibited lipid peroxidation (LPO) by 78%, 63%, 81% and 43%, cyclooxygenase enzymes COX-1 by 55%, 33%, 43% and 24% and COX-2 by 65%, 55%, 77% and 69%, respectively. At same concentration, CMM, CMW, CLM and CLW showed growth inhibition of human tumour cell lines by 0-46%. Therefore, a bioassay-guided isolation of water and methanolic extracts of C. longa was carried out and afforded nine isolates. At 25 μg/mL, these compounds inhibited LPO by 11-87%, COX-1 and -2 enzymes by 0-35% and 0-82% and growth of human tumour cells by 0-36%, respectively.     

Isolation of probiotic bacteria from turmeric (Curcuma longa Linn.) and its application in enriched beverages

The purpose of this study is to obtain lactic acid bacteria (LAB) from fresh turmeric rhizomes that could be used as starter culture with the ability to ferment turmeric and to investigate its influence on total phenolic content (TPC) and antioxidant activity. Three LAB strains, namely Enterococcus faecium, Lactococcus lactis subsp. lactis, and Lactobacillus plantarum, were isolated from turmeric rhizomes. These microorganisms showed similar characteristics as probiotic organisms. The TPC of fermented turmeric beverages was measured using the Folin–Denis reagent method, while the antioxidant activity assays were quantified by 2,2‐diphenyl‐1‐picrylhydrazyl (DPPH) and ferric reducing antioxidant power assay. This study confirms that bacteria isolated from turmeric can be used as starter. Moreover, fermentation time and LAB lead to dominant amount of TPC and that they have high levels of antioxidant activities.     

Drying Kinetics of Curcuma longa Rhizomes

ABSTRACT: Modeling drying kinetics is very useful for optimization purposes. Hot air drying kinetics were carried out in monolayer at different temperatures (60°C, 70°C, 80°C, 90°C, and 100°C) and for different sample types (peeled and unpeeled rhizomes of different sizes). Mathematical models based on Fick's law were used to describe water removal, considering different boundary conditions and geometries. Effective moisture diffusivities identified from modeling presented an Arrhenius-type relationship. An additional mass transfer resistance was identified as due mainly to the peridermis layer (peridermial resistance). The accuracy of the model assuming peridermial resistance only in the radial direction and solved using the finite differences method was illustrated, and the mass transfer coefficient was identified (k = 9.7 × 10^-5 kg water/m²/s). Keywords: Curcuma longa , drying, modeling, peridermial resistance     

Purification and properties of cysteine protease from rhizomes of Curcuma longa (Linn.) Radhakrishnan Nagarathnam,Anandhan Rengasamy and Rudresan Balasubramanian

The original article to which this Erratum refers was published in Journal of the Science of Food and Agriculture 2010 90: 97–105     

Study on enhanced absorption of phenolic compounds of Lactobacillus‐fermented turmeric (Curcuma longa Linn.) beverages in rats

Lactobacillus plantarum, used as starter culture to produce turmeric beverages, was isolated and screened from the turmeric rhizomes. Fermented turmeric beverages were evaluated for its antioxidant activity using 2‐2‐diphenyl‐1‐picrylhydrazyl (DPPH) radical‐scavenging activity and ferric‐reducing antioxidant power (FRAP) assay. The fermentative process resulted in an increase in antioxidant activity. The absorption of turmeric powder, turmeric powder‐mixed encapsulated probiotic (TP) and encapsulated fermented turmeric beverage (TB) in rats was measured in terms of antioxidant activity in the plasma. Plasma antioxidant concentration was higher in rats administrated fermented turmeric beverage than other turmeric products, at all the time points. The maximum concentration (C_max) value and area under the plasma concentration versus time curve (AUC) were higher in the rat administered with TB. The value was lower in the plasma of rats administered with turmeric powder and TP. The results indicated that the fermentative turmeric possesses better bioavailability and in accordance with the concentrations of polyphenolic compounds in the rat plasma.     

Essential oil of Curcuma longa inhibits Streptococcus mutans biofilm formation

Curcuma longa (C. longa) has been used as a spice in foods and as an antimicrobial in Oriental medicine. In this study, we evaluated the inhibitory effects of an essential oil isolated from C. longa on the cariogenic properties of Streptococcus mutans (S. mutans), which is an important bacterium in dental plaque and dental caries formation. First, the inhibitory effects of C. longa essential oil on the growth and acid production of S. mutans were tested. Next, the effect of C. longa essential oil on adhesion to saliva-coated hydroxyapatite beads (S-HAs) was investigated. C. longa essential oil inhibited the growth and acid production of S. mutans at concentrations from 0.5 to 4 mg/mL. The essential oil also exhibited significant inhibition of S. mutans adherence to S-HAs at concentrations higher than 0.5 mg/mL. S. mutans biofilm formation was determined by scanning electron microscopy (SEM) and safranin staining. The essential oil of C. longa inhibited the formation of S. mutans biofilms at concentrations higher than 0.5 mg/mL. The components of C. longa essential oil were then analyzed by GC and GC-MS, and the major components were α-turmerone (35.59%), germacrone (19.02%), α-zingiberene (8.74%), αr-turmerone (6.31%), trans-β-elemenone (5.65%), curlone (5.45%), and β-sesquiphellandrene (4.73%). These results suggest that C. longa may inhibit the cariogenic properties of S. mutans.     

ICP-MS/ICP-AES法测定姜黄中的无机元素

文章以姜黄为原料,用ICP-MS法测定Li,B,Mg,Al,P,Ca,Ti,V,Cr,Mn,Fe,Co,Ni,Cu,Zn,Sr,Ba,Cd,Pb,以ICP-AES 法测定Ca、Mn,方法的准确度经用两个国家一级标准物质GBW 10015、GBW 10020对比分析,证实具有良好的准确度,精密度试验显示RSD在0.5%～7.1%之间,结果显示本法的准确度和精密度,完全可以满足姜黄样品中无机元素测定要求.     

姜黄提取物的抗氧化及抗菌活性研究

以猪油的过氧化物值为指标,抗氧化能力由强到弱依次为姜黄素类化合物〉姜黄素〉挥发油。挥发油的抗菌能力比较强,对大肠杆菌、枯草芽孢杆菌、青霉、酵母菌均有抑制作用;姜黄素类化合物只对青霉有抑制作用;姜黄素对四种菌均无抑制作用。