هیدرولیز آنزیمی امعا و احشا ماهی سفید دریای خزر(Caspian kutum) و بررسی خواص آنتی اکسیدانی پروتئین هیدرولیز شده

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه علوم و صنایع غذایی، دانشگاه آزاد اسلامی ، واحد علوم و تحقیقات، تهران، ایران

2 گروه علوم و صنایع غذایی، دانشگاه آزاد اسلامی واحد علوم و تحقیقات، تهران، ایران

3 گروه تغذیه، دانشگاه متروپولیتن لندن، لندن، انگلستان

چکیده

چکیده: مطالعه حاضر به استخراج و خالص سازی پپتیدهای زیست فعال و بررسی خواص آنتی­اکسیدانی و ضد سرطانی پروتئین هیدرولیز شده امعا و احشا ماهی سفید دریای خزر توسط هیدرولیز آنزیمی با آنزیم­های آلکالاز و فلورزایم می­پردازد. فعالیت آنتی­اکسیدانی پروتئین هیدرولیز شده با استفاده از آزمون­های قدرت مهار کنندگی رادیکال آزاد DPPH، قدرت احیا کنندگی آهن و درصد شلاته کنندگی یون Fe2+ بررسی شد. نتایج نشان داد که پروتئین هیدرولیز شده دارای فعالیت آنتی­اکسیدانی بوده و آنزیم آلکالاز نسبت به آنزیم فلاورزایم قادر به تولید پودر پروتئینی با درجه هیدرولیز بالاتری (2/1 ± 5/20) می باشد. قدرت مهار رایکال آزاد و خاصیت شلاته­کنندگی یون آهن پروتئین هیدرولیز شده با آلکالاز بطور معنی­داری بیشتر از پروتئین هیدرولیز شده با فلورزایم بود (05/0p <). نتایج حاصل از کشت سلولی و رده سلولی MCF-7 نشان داد که غلظت 500 میلی گرم بر لیتر پروتئین هیدرولیز شده با وزن مولکولی کمتر از 3 کیلو دالتون توسط آنزیم آلکالاز بطور کامل موجب مهار رشد سلول­های سرطان سینه شده است و اثرات مهارکنندگی آن در مقایسه با داروی Lynparza بیشتر بوده است (05/0p <). بر اساس نتایج بدست آمده، به نظر می رسد که پپتیدهای حاصل از ماهی سفید با اثرات قوی آنتی اکسیدانـی و ضـد سرطانی پتانسیل استفاده به عنوان یک آنتـی­اکسیدان طبیعی در محصولات غذایـی و دارویـی را دارا می باشند.

کلیدواژه‌ها


عنوان مقاله [English]

Enzymatic Hydrolysis of Whitefish Viscera of Caspian Sea (Caspian kutum) and Evaluation of Antioxidant Properties of hydrolyzed protein

نویسندگان [English]

  • mona azizi 1
  • anoushe sharifan 2
  • ebrahim hoseini 2
  • abdollah ghavami 3
1 department of agriculture science &amp; food industry. islamic azad university.Science and Research branch. Tehran. iran
2 Department of Agriculture Science &amp; Food Industry, Islamic Azad University ,Science and Research Branch , Tehran, Iran.
3 School of Human Sciences, London Metropolitan University, London, UK
چکیده [English]

ABSTRACT: In this study, the extraction and purification of bioactive peptides and evaluation of antioxidant and anticancer properties of the hydrolyzed protein of whitefish viscera of Caspian Sea through enzymatic hydrolysis with alcalase and flavourzyme were investigated. Antioxidant activity of the hydrolyzed protein was evaluated by DPPH- free radical scavenging activity, ferric reducing power, and metal chelating activity of Fe2+. Results showed that the hydrolyzed protein had antioxidant activity and the alcalase had the potential of production of protein powder with a higher hydrolysis degree (20.5 ±1.2) in comparison with flavourzyme. DPPH-free radical scavenging and metal chelating activities of the protein hydrolyzed by alcalase was significantly higher than that by flavourzyme (p < 0.05). The results of cell culture and MCF-7 cell line indicated that the concentration of 500 mg/L of the hydrolyzed protein by alcalase with molecular weight of less than 3 kDa completely inhibited the growth of breast cancer cells and its inhibitory effect was higher than Lynparza (p < 0.05). The results showed that obtained peptides from whitefish with strong antioxidant and anti-cancer effects have the potential to be used as a natural antioxidant in the food industry and pharmacy.

کلیدواژه‌ها [English]

  • Enzymatic hydrolysis
  • Whitefish
  • Bioactive peptide
  • Antioxidant properties
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