Porphyran and oligo-porphyran originating from red algae Porphyra: Preparation, biological activities, and potential applications.

Yanjun Qiu, Hong Jiang, Linlan Fu, Fangfang Ci, Xiangzhao Mao

Food chemistry 2021 Jul 01

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Porphyra is one of the most economically important red algae in the world. The functional components extracted from Porphyra such as porphyrans, proteins, lipids, and minerals have strong physiological activities. Porphyran, a sulfated galactan, is composed of alternating 1,4-linked α-l-galactopyranose-6-sulfate (L6S) and 1,3-linked β-d-galactopyranose (G). Porphyran and oligo-porphyran have a series of pharmacological and biological functions, such as antioxidation, anticancer, antiaging, antiallergic, immunomodulatory, hypoglycaemic, and hypolipidemic effects. Thus, red algae Porphyra-derived porphyran and oligo-porphyran have various potential applications in food, medicine, and cosmetic fields. For better application, this review introduces and summarizes the structure and source of porphyran as well as the preparation methods, biological activities, and potential applications of porphyran and oligo-porphyran. Moreover, the future research directions and emphasis of porphyran and oligo-porphyran preparation as well as their functional activities and applications are highlighted and prospected. Copyright © 2021 Elsevier Ltd. All rights reserved.

Citation

Yanjun Qiu, Hong Jiang, Linlan Fu, Fangfang Ci, Xiangzhao Mao. Porphyran and oligo-porphyran originating from red algae Porphyra: Preparation, biological activities, and potential applications. Food chemistry. 2021 Jul 01;349:129209