Effect of Drying Temperatures and Aids on Polyphenol Content, Antioxidant Activity, and β Glucosidase Enzyme Inhibition Activity of Powder Stylissa flexibilis
Year: 2020
Type: article
Abstract: Sponge Stylissa flexibilis is Porifera belong to a medicine animal group in the Vietnam sea, contains numerous valuable bioactive substances. The study focused on the impact of spray-drying input temperatures (90°C, 100°C, 110°C, and 120°C) and aids (Maltodextrin, saccharose: maltodextrin mixture (1:1, w/w and 1:2, w/w)) on the physical-chemical properties (moisture content, solubility, and polyphenol content), antioxidant activities (mechanism Mo6+ and Fe3+), and inhibition enzyme β Glucosidase of sponge extract powder. The sponge was collected from the sponge in May 2017 in the Ninh Thuan sea. The results showed the polyphenol content, total antioxidant activity, reducing power activity, and β Glucosidase enzyme inhibition activity was affected by the temperature and aids of the drying process and got the highest value of 77.692 ± 2.025 mg phloroglucinol equivalent/100g DW, 98.526 ± 1.997 mg ascorbic acid equivalent/100g DW, 28.945 ± 0.754 mg FeSO4 equivalent/100g DW, and 75.38 ± 2.516/100 μg/ml was at 90°C, respectively, compared to the others. The moisture of powder was a negative-correlation to the increase of drying temperature. All the powder dissolved fully in the water. Polyphenol content and bioactivities (antioxidant activity, β Glucosidase enzyme inhibition activity) was a strong correlation with each other (R2>0.8) and a positive-correlation to drying temperature. The suitable condition for drying of active polyphenol powder was at 90°C and 10% of maltodextrin. Active polyphenol powder can be useful for applicating into functional foods and pharmaceutics.
Authors: Dang Xuan Cuong, Nguyen Thi Phuong Hien
Language: English
Subfield: Food Science
Domain: Life Sciences
Open Access status: diamond
Funder: Trường Đại học Nha Trang
OpenAlex ID: W3035857421