The botanical profile, phytochemistry, biological activities and protected-delivery systems for purple sweet potato (Ipomoea batatas (L.) Lam.): An up-to-date review. (November 2022)

• Record Type: Journal Article
• Authors: Jiang, Tian; Ye, Shuxin; Liao, Wei; Wu, Muci; He, Jingren; Mateus, Nuno; Oliveira, Hélder
• Is Part Of: Food research international. Volume 161(2022)
• Publication Date: 2022-11
• Subjects: Purple sweet potato -- Chemical composition -- Biological activities -- Encapsulation systems -- Comprehensive utilization; Food -- Analysis -- Periodicals; Food industry and trade -- Periodicals; Food industry and trade -- Canada -- Periodicals; Food Technology -- Periodicals; Food -- Periodicals; Food-Processing Industry -- Periodicals; Aliments -- Industrie et commerce -- Périodiques; Aliments -- Industrie et commerce -- Canada -- Périodiques; Aliments -- Recherche -- Périodiques; Food industry and trade; Canada; Periodicals; Electronic journals; 664.005
• DOI: 10.1016/j.foodres.2022.111811
• Languages: English
• ISSNs: 0963-9969

Abstract

Graphical abstract: Highlights: More than 135 chemical constituents have been isolated and identified in purple sweet potato. Purple sweet potato powders, extracts or individual compounds present biological activities. The properties of purple sweet potato extracts and flours have been improved by using various delivery systems. Full utilization of macromolecules and small-molecule compounds is crucial for sustainable development. Abstract: Purple sweet potato (PSP) is an important economic crop in many countries, as a staple food and a source of bioactive compounds, which has attracted considerable attention. This review provides an up-to-date summary and discusses the available literature concerning PSP. Different issues, including its bioactive compounds, health effects and various efficient encapsulation strategies for PSP powders, extracts or individual substance are covered in detail, along with its utilization. In addition to the valuable nutritional composition, more than 135 bioactive compounds have been isolated and identified from these plants so far. Among the plenty of constituents, polysaccharides and flavonoids are the focus of attention and exhibit various biological activities. Additionally, protected-delivery systems are strongly proposed to shelter the bioactive compounds providing a better stability and improved pharmacological activities. Normally, PSP roots are the most attractive part to human because of their economic value. Even though PSP anthocyanins are the focus of researchers and industrial due to their attractive color and wide range of biological activities, PSP starch and protein also have wide applications in foods and nonfoods industries. However, the exploitation of PSP considering comprehensive utilization of various compounds, such as starch, non-starch polysaccharides, protein, and bioactive compounds should be considered.