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| Yang,Shuang; Zheng,Mingzhu; Cao,Yong; Dong,Yanjiao; Yaqoob,Sanabil; Liu,Jingsheng. |
| Abstract Cordyceps militaris 202 is a potential fungus for biotransformation zein, due to its various proteases, high tolerance and viability in nature. In this article, single factor experiment and response surface methodology were applied to optimize the liquid fermentation conditions and improve the ability of biotransformation zein. The optimized fermentation conditions were as follows: inoculum concentration of 19%, volume of liquor of 130 mL/500 mL and pH of 4.7. Under this condition, the degree of hydrolysis (DH) was 27.31%. The zein hydrolysates from fungi fermentation maintained a high thermal stability. Compared to the original zein, the zein hydrolysates were found to have high solubility, which most likely results in improved foaming and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zein; Degree of hydrolysis; Cordyceps militaris 202; Functionality. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000300621 |
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| Vidal,Alessandra Roseline; Cechin,Carine da Fonseca; Cansian,Rogério Luis; Mello,Renius de Oliveira; Schmidt,Michele Mantelli; Demiate,Ivo Mottin; Kempka,Aniela Pinto; Dornelles,Rosa Cristina Prestes. |
| ABSTRACT: Enzymatic hydrolysis (pepsin) assisted with or without ultrasound in the functional properties of hydrolyzates from different collagens were analyzed. Degree of hydrolysis, antioxidant activity (DPPH) and antimicrobial activity (MIC) were assessed. The treatment that resulted in greater antioxidant activity for the fiber sample was with the use of 4% of enzyme and concomitant ultrasound (40.7%), leading to a degree of hydrolysis of 21.7%. For the powdered fiber sample the hydrolysis treatment with use of 4% of enzyme resulted in lower protein content (6.97mg/mL), higher degree of hydrolysis (19.9%) and greater antioxidant activity (38.6%). The hydrolyzates showed inhibitory capacity against gram-negative bacteria Salmonella choleraesuis and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pepsin; Degree of hydrolysis; Antioxidant activity; Antimicrobial activity; Ultrasound. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000300752 |
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