Physicochemical and functional properties of goat milk whey protein and casein obtained during different lactation stages

Author(s):  
Y.S. Qin ◽  
H. Jiang ◽  
C.F. Wang ◽  
M. Cheng ◽  
L.L. Wang ◽  
...  
Foods ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 1198 ◽  
Author(s):  
Mu Tian ◽  
Cuina Wang ◽  
Jianjun Cheng ◽  
Hao Wang ◽  
Shilong Jiang ◽  
...  

Soy isoflavones (SIF) are a group of polyphenolic compounds with health benefits. However, application of SIF in functional foods is limited due to its poor aqueous solubility. SIF nanoparticles with different concentrations were prepared using polymerized goat milk whey protein (PGWP) as wall material. The goat milk whey protein was prepared from raw milk by membrane processing technology. The encapsulation efficiencies of all the nanoparticles were found to be greater than 70%. The nanoparticles showed larger particle size and lower zeta potential compared with the PGWP. Fourier Transform Infrared Spectroscopy indicated that the secondary structure of goat milk whey protein was changed after interacting with SIF, with transformation of α-helix and β-sheet to disordered structures. Fluorescence data indicated that interactions between SIF and PGWP decreased the fluorescence intensity. All nanoparticles had spherical microstructure revealed by Transmission Electron Microscope. Data indicated that PGWP may be a good carrier material for the delivery of SIF to improve its applications in functional foods.


2013 ◽  
Vol 61 (28) ◽  
pp. 6911-6920 ◽  
Author(s):  
Mostafa Ali ◽  
Thomas Homann ◽  
Mahmoud Khalil ◽  
Hans-Peter Kruse ◽  
Harshadrai Rawel

2021 ◽  
pp. 64-70
Author(s):  
Е.А. Горнич ◽  
А.В. Дурягина ◽  
Ю.И. Зайцева ◽  
В.А. Хаханова

Цель работы – разработать технологию нового продукта с повышенным содержанием белка. В статье представлена технология производства майонеза, обогащённого сывороточным белком альбумином. При разработке технологической схемы производства майонеза с альбумином была принята традиционная схема, в которую были добавлены дополнительные операции по подготовке альбумина: размораживание (дефростация), обезвоживание. В ходе исследований были проведены выработки контрольного и трёх опытных образцов с различным процентным содержанием альбумина (5, 10 и 15%). По результатам проведённых исследований нами рекомендуется вводить в рецептуру майонеза не более 10% альбумина. По органолептическим показателям, влажности и кислотности разработанный нами продукт отвечает требованиям ГОСТ 31761-2012 «Майонезы и соусы майонезные. Общие технические условия». Мы считаем, что введение в рецептуру альбумина позволит увеличить в майонезе долю легкоусвояемого белка, что, несомненно, повысит пищевую и биологическую ценность готового продукта. The goal of the work is to develop the technology of a new product with an increased protein content. The technology for the production of mayonnaise enriched with whey protein albumin is presented in the article. When developing the technological scheme for the production of mayonnaise with albumin, a traditional scheme was adopted, in which additional operations for the preparation of albumin were added: defrosting (defrostation), sublimating. During the researches the production of control and three experimental samples with different percentages of albumin (5, 10 and 15%) was carried out. According to the results of the research carried out, we recommend introducing no more than 10% albumin into the mayonnaise formula. According to organoleptic indicators, humidity and acidity, the product developed by us meets the requirements of GOST 31761-2012 "Mayonnaise and mayonnaise sauces. General Specifications". We believe that the addition of albumin to the formula will increase the proportion of easily digestible protein in mayonnaise, which will undoubtedly increase the nutritional and biological value of the finished product.


2015 ◽  
Vol 77 ◽  
pp. 450-459 ◽  
Author(s):  
Vincenza Ferraro ◽  
Ana Raquel Madureira ◽  
Bruno Sarmento ◽  
Ana Gomes ◽  
Manuela E. Pintado

2020 ◽  
Vol 103 (2) ◽  
pp. 1289-1302 ◽  
Author(s):  
Xuan Zhao ◽  
Ming Cheng ◽  
Xuexi Zhang ◽  
Xiangying Li ◽  
Di Chen ◽  
...  

2009 ◽  
Vol 23 (8) ◽  
pp. 2485-2492 ◽  
Author(s):  
Stephen R. Euston ◽  
Al-Amari Al-Bakkush ◽  
Lydia Campbell

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