کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5133287 | 1492065 | 2017 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Antioxidant and functional properties of protein hydrolysates obtained from squid pen chitosan extraction effluent Antioxidant and functional properties of protein hydrolysates obtained from squid pen chitosan extraction effluent](/preview/png/5133287.png)
- Squid pen protein from wastewater was hydrolysed by trypsin, pepsin and a bacterial protease called HT.
- Trypsin and HT hydrolysates generated more antioxidant activity than pepsin hydrolysates.
- High ACE-inhibitory activity was generated in the trypsin and pepsin hydrolysates.
- Protein recovered from chitosan processing waste solution can be a potential source of biopeptides.
Squid pens were subjected to alkali hydrolysis to extract chitin and chitosan. Proteins present in the alkaline extraction wastewater were recovered at pH 3, 4, 5 and 6, and were subjected to hydrolysis by trypsin, pepsin and a bacterial protease called HT for 1, 2, 4 and 24Â h. Hydrolysis of the extracted proteins with either trypsin or HT generated more antioxidant activity than hydrolysis with pepsin. Higher ACE-inhibitory activity was generated in the trypsin and pepsin hydrolysates than in the HT hydrolysate. Squid pen protein recovered from chitosan processing waste alkaline solution can be a potential source of bioactive peptides for addition to foods. The antioxidant and ACE-inhibitory activities of the extracted proteins were initially low and increased upon incubation with the proteases. Pepsin generated significantly lower (PÂ <Â 0.05) antioxidant activities compared to trypsin and HT, while trypsin and pepsin hydrolysates exhibited higher ACE-inhibitory activity than HT (PÂ <Â 0.05).
Journal: Food Chemistry - Volume 227, 15 July 2017, Pages 194-201