Results 71 to 80 of about 25,271 (286)

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

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

Oleogels as Emerging Solid Fat Substitutes: Basic Characteristics, Preparation Strategies, and Food Applications

open access: yesFood Safety and Health, EarlyView.
This article reviews the basic characteristics, factors affecting properties of oleogels, and preparation methods of oleogels. Meanwhile, their applications in meat products, dairy products, baked goods, and delivering bioactive compounds are highly summarized.
Wenyuan Zhang   +6 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 Trends of the Agrarian Foreign Trade of CR after Accession to EU, Competitiveness of Commodities [PDF]

open access: yes
The extent of agricultural foreign trade (AFT) of the Czech Republic (CR) increased markedly after accession to EU. The first part of this article is devoted to the trends during the period of 2004 – 2008. Detailed analysis of the CR AFT has been carried
Burianova, Jaroslava
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  

Organic residue analysis of Egyptian votive mummies and their research potential [PDF]

open access: yes, 2015
YesVast numbers of votive mummies were produced in Egypt during the Late Pharaonic, Ptolemaic, and Roman periods. Although millions remain in situ, many were removed and have ultimately entered museum collections around the world. There they have often
Aufderheide A.C.   +36 more
core   +1 more source

Influence of Nanomaterials and Nanocomposites on the Nutrient Composition

open access: yesFood Safety and Health, EarlyView.
Nanomaterials and nanocomposites enhance crop nutrition and food quality by improving nutrient availability, plant uptake, and bioavailability through controlled delivery and nano‐encapsulation. Their applications in agriculture and food systems enable sustainable biofortification, improved preservation, and functional foods, while emphasizing safety ...
Akanksha Dwivedi   +4 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

The geography of UK international trade. [PDF]

open access: yes
This paper examines how the geography of UK international trade has changed since the UK’s accession to the European Economic Community using a newly constructed data set that gives a detailed breakdown of the UK’s imports and exports by both port of ...
Overman, Henry G., Winters, L. Alan
core   +1 more source

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