Results 71 to 80 of about 24,826 (264)

超声辅助酶法制备菜籽肽及其组成、 物理特性及结构分析Preparation of rapeseed peptides by ultrasound assisted enzymatic hydrolysis and analysis of its composition, physical properties and structure

open access: yesZhongguo youzhi
为提高低温压榨菜籽饼的附加值和应用价值,采用石油醚对低温压榨菜籽饼进行脱脂,然后利用超声预处理分别辅助木瓜蛋白酶和碱性蛋白酶直接酶解制备菜籽肽,通过单因素试验探究超声功率、超声时间及酶添加量对菜籽肽得率的影响,通过响应面法优化超声辅助酶解工艺条件,并对所得菜籽肽的组成、物理特性以及结构进行分析。结果表明:碱性蛋白酶酶解的菜籽肽得率高于木瓜蛋白酶的;最佳超声辅助碱性蛋白酶酶解工艺条件为酶添加量12 289.79 U/g、超声时间21.82 min、超声功率306.56 W,该条件下菜籽肽得率为55.19%;
黎茂英1,黄桃翠2,刘文海3,石慧1,韩梅2,陈泳玲4,钟耕1,5 LI Maoying1, HUANG Taocui2, LIU Wenhai3, SHI Hui1, HAN Mei2, CHEN Yongling4,ZHONG Geng1,5
doaj   +1 more source

Insect‐Derived Bioactives for Glycemic Control and Gut Health: A Review

open access: yesFood Frontiers, EarlyView.
Insect‐derived bioactive compounds (e.g., peptides, polysaccharides) effectively regulate blood glucose through dual mechanisms: directly inhibiting carbohydrate‐digesting enzymes and glucose transporters, and indirectly modulating gut microbiota to enhance intestinal barrier integrity.
Chaoyi Lv   +5 more
wiley   +1 more source

大豆油水酶法提取技术研究进展Research progress on aqueous enzymatic extraction technology of soybean oil

open access: yesZhongguo youzhi
大豆油是我国居民膳食油的主要来源,富含多种营养成分。为促进大豆油提取技术的发展,从水酶法提油的基本原理出发,重点阐述了大豆油水酶法提取技术中酶的筛选和活性优化、酶解工艺优化、酶解后破乳以及水酶法与其他辅助手段联用的研究进展,同时综述了水酶法提取对大豆油品质的影响。相比于其他油料,大豆含油量较低且胞内存在占比较大的蛋白质使得其油脂提取较困难。通过工艺优化可有效提高水酶法提取大豆油的提取率,且所得油脂营养价值相对较高,水酶法提取条件温和、能耗低、操作简单安全,符合大豆油加工业的发展需求 ...
郝倩1,岳昊2 HAO Qian1,YUE Hao2
doaj   +1 more source

THE CAUSES OF INTRA-INDUSTRY TRADE BETWEEN THE U.S. AND CANADA:TIME-SERIES APPROACH WITH A GRAVITY MODEL [PDF]

open access: yes
This study proposes alternative reasons to explain an asymmetric intra-industry trade for agricultural products between Canada and the United States after the free trade agreement became effective.
Cho, Guedae, Kim, MinKyoung, Koo, Won W.
core   +1 more source

Variation in the apparent faecal digestibility of macronutrients and urinary energy excretion for three diets varying in fat and fibre content-- assessment of the Atwater factors and related energy conversion factors : a thesis presented in partial fulfillment of the requirements for the degree of Master of Science in Nutritional Science at Massey University, Palmerston North, New Zealand [PDF]

open access: yes, 2007
Background: Current systems to estimate dietary metabolisable energy (ME), often based on Atwater factors, assume that diet ME can be accurately predicted based on a few chemical components and that the ME of components is constant across foods ...
Zou, Maggie Long
core  

Fluorescent light and sunlight radiations may improve rice bran oil colour and influence its oxidative stability and chemical composition

open access: yesFood Biomacromolecules, EarlyView.
Abstract The influence of pretreatment of rice bran oil using fluorescent and sunlight radiations on its colour and their influence on its chemical composition and oxidative stability were assessed. Rice bran oil was stored under sunlight, fluorescent light and ambient conditions for 60 days. Oil samples were collected every 15 days for analysis.
Sab Sharon Mbape   +3 more
wiley   +1 more source

云南6种木本植物油脂肪酸组成分析及调和优化"Fatty acid composition analysis and blending optimization of six woody plant oils in Yunnan province"

open access: yesZhongguo youzhi
为促进云南木本植物油的应用,以产自云南的蒜头果油、印度血桐油、元宝枫籽油、滇牡丹籽油、美藤果油和橡胶籽油为研究对象,采用气相色谱法测定其总脂肪酸和sn-2位脂肪酸的组成与含量,并在满足膳食脂肪酸推荐标准的基础上,以功能性脂肪酸含量为指标,利用规划求解算法优化了6种木本植物油的调和产品。结果表明:6种木本植物油富含功能性脂肪酸,其中元宝枫籽油、美藤果油和橡胶籽油分别含有35.92%、39.59%和35.78%的亚油酸,滇牡丹籽油与美藤果油分别含有32.02%和42.56%的α-亚麻酸,蒜头果油 ...
于雪莲1,2,杨培艺3,郭娟1,罗嘉1,张帆3YU Xuelian1,2,YANG Peiyi3,GUO Juan1,LUO Jia1,ZHANG Fan3
doaj   +1 more source

Engineering microbial fatty acid metabolism for biofuels and biochemicals [PDF]

open access: yes, 2017
Traditional oleochemical industry chemically processes animal fats and plant oils to produce detergents, lubricants, biodiesel, plastics, coatings, and other products.
Borodina, Irina   +3 more
core   +2 more sources

Beeswax: Food and beyond

open access: yesFood Biomacromolecules, EarlyView.
Abstract Honeybees (Apis mellifera L.) are an important class of insects that are the most beneficial in terms of economy. Beeswax is the second most important bee products after honey. Its commercial importance is due to its antimicrobial, antioxidant, anti‐inflammatory and antiseptic as well as regenerative properties.
Rajshri Naveen, Manickam Loganathan
wiley   +1 more source

"挤压组织化对大豆蛋白结构及大豆组织 蛋白品质影响的研究进展""Effect of extrusion texturization on the structure of soybean protein and the quality of textured soybean protein products: A review"

open access: yesZhongguo youzhi
大豆组织蛋白是一种以大豆蛋白为原料,运用挤压机的高温、高压、高剪切力使蛋白质分子原有结构改变,并最终形成具有纤维结构、口感类似动物肉的产品。旨在为大豆组织蛋白产品的研发提供理论参考,通过介绍大豆蛋白挤压组织化过程,对挤压过程中大豆蛋白的结构变化进行综述,重点阐述了挤压组织化对大豆蛋白分子间相互作用与蛋白质构象的影响,总结了原辅料及挤压工艺参数对大豆组织蛋白产品品质的影响。在大豆蛋白的组织化过程中,蛋白质的空间结构、分子间作用力发生改变,以二硫键为主的共价键对于形成纤维状和网状的蛋白质结构发挥了重要作用 ...
马润豪1,安红周1,2,薛义博2,黄亚男3,杜艳1,2MA Runhao1,AN Hongzhou1,2,XUE Yibo2,HUANG Yanan3,DU Yan1,2
doaj   +1 more source

Home - About - Disclaimer - Privacy