Evaluation of the functional properties of ethanolic and polysaccharide extracts of Spirulina platensis

IF 3.6

Bioactive Carbohydrates and Dietary Fibre Pub Date : 2024-01-05 DOI:10.1016/j.bcdf.2024.100401

Reza Habibi , Mehrnoosh Tadayoni , Hossein Mohammadpour

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Abstract

This study aimed to investigate the prebiotic, antioxidant and antimicrobial activity of ethanolic and polysaccharide extracts from Spirulina platensis. The ethanol extract was obtained by the soxhlet method and the polysaccharide was extracted with hot water. Total phenol content was obtained by the folin-ciocalteu method. The ethanol extract and the polysaccharide extracted from the S. platensis had a high phenol. Also, the extract had comparable prebiotic properties with commercial prebiotic (Inulin). Both extracts in the period of 24–72 h affected the growth and viability of the Lactobacillus plantarum A7. Based on the results, the half-maximal inhibitory concentration (IC50) of DPPH free radical for ethanol extract and polysaccharide was estimated to be 0.279 and 0.319 mg/mL. Also, the IC50 of hydroxyl radical scavenging capacity for polysaccharide and ethanol extract was calculated to be 0.167, 0.14 mg/mL, respectively. Therefore, these compounds can be introduced as natural substances with antioxidant, prebiotic and antimicrobial capabilities in the food and pharmaceutical industries.

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评估螺旋藻乙醇提取物和多糖提取物的功能特性

本研究旨在探讨板蓝根螺旋藻乙醇提取物和多糖提取物的益生元、抗氧化和抗菌活性。乙醇提取物采用索氏提取法，多糖采用热水提取。总酚含量用酚醛树脂法测定。从 S. platensis 提取的乙醇提取物和多糖具有较高的酚含量。此外，提取物还具有与商业益生元（菊粉）相当的益生特性。两种提取物在 24-72 小时内都会影响植物乳杆菌 A7 的生长和活力。结果显示，乙醇提取物和多糖对 DPPH 自由基的半最大抑制浓度（IC50）分别为 0.279 和 0.319 mg/mL。多糖和乙醇提取物清除羟自由基的 IC50 分别为 0.167 和 0.14 mg/mL。因此，这些化合物可作为具有抗氧化、益生和抗菌功能的天然物质应用于食品和制药行业。

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来源期刊

Bioactive Carbohydrates and Dietary Fibre Agricultural and Biological Sciences-Food Science

CiteScore

6.00

自引率

0.00%

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