摘要
Seaweeds are rich in different bioactive compounds with potential uses in drugs, cosmetics and the food industry. The objective of this study was to analyze macromolecular antioxidants or nonextractable polyphenols, in several edible seaweed species collected in Chile (Gracilaria chilensis, Callophyllis concepcionensis, Macrocystis pyrifera, Scytosyphon lomentaria, Ulva sp. and Enteromorpha compressa), including their 1st HPLC characterization. Macromolecular antioxidants are commonly ignored in studies of bioactive compounds. They are associated with insoluble dietary fiber and exhibit significant biological activity, with specific features that are different from those of both dietary fiber and extractable polyphenols. We also evaluated extractable polyphenols and dietary fiber, given their relationship with macromolecular antioxidants. Our results show that macromolecular antioxidants are a major polyphenol fraction (averaging 42% to total polyphenol content), with hydroxycinnamic acids, hydroxybenzoic acids and flavonols being the main constituents. This fraction also showed remarkable antioxidant capacity, as determined by 2 complementary assays. The dietary fiber content was over 50% of dry weight, with some samples exhibiting the target proportionality between soluble and insoluble dietary fiber for adequate nutrition. Overall, our data show that seaweed could be an important source of commonly ignored macromolecular antioxidants. Practical Application
In this study, the composition of several edible seaweeds from Chile, in terms of macromolecular antioxidants and dietary fiber, was evaluated. All the seaweeds showed relevant content of these constituents. Given the nutritional interest of these compounds, the consumption of these seaweeds might be promoted within the frame of a healthy diet and they can also be used as sources of macromolecular antioxidants and dietary fiber for the production of new ingredients. .overlined { text-decoration: overline; } .struck { text-decoration:line-through; } .underlined { text-decoration:underline; } .doubleUnderlined { text-decoration:underline;border-bottom:1px solid #000; } View Full Article (HTML) Enhanced Article (HTML) Get PDF (189K)Get PDF (189K) More content like thisFind more content: like this articleFind more content written by: Nerea Sanz-Pintos Jara Pérez-Jiménez Alejandro H. Buschmann José Rodrigo Vergara-Salinas José Ricardo Pérez-Correa Fulgencio Saura-Calixto All Authors
摘要译文
海藻富含不同的生物活性化合物，可用于药物，化妆品和食品工业这项研究的目的是分析大分子抗氧化剂或不可提取的多酚，在几个食用海藻品种收集在智利（Gracilaria chilensis，（Callophyllis concepcionensis），Macrocystis pyrifera，Scytosyphon lomentaria，Ulvasp andEnteromorpha compressa），包括它们的第一HPLC表征大分子抗氧化剂在生物活性化合物的研究中通常被忽略。它们与不溶性膳食纤维相关并表现出显着的生物活性，具有不同于那些膳食纤维和可提取的多酚的特点我们还评估了可提取的多酚和膳食纤维，给出了它们与大分子抗氧化剂的关系。我们的结果表明，大分子抗氧化剂是主要的多酚组分（平均为总多酚含量的42％25）与羟基肉桂酸，羟基苯甲酸和黄酮醇作为主要成分。该部分还显示出显着的抗氧化能力，通过2个互补测定法膳食纤维含量超过干重的50％25，一些样品表现出可溶性和不溶性膳食纤维之间的目标比例以获得足够的营养。总之，我们的数据表明海藻可以是常见忽略的大分子抗氧化剂的重要来源。实用应用在这项研究中，来自智利的几种食用海藻的组成，在大分子抗氧化剂和膳食纤维方面进行评估。所有的海藻都显示出这些成分的相关含量。鉴于这些化合物的营养利益，这些海藻的养分可以在健康饮食的框架内被促进，并且它们也可以用作大分子抗氧化剂和膳食纤维的来源用于生产新的成分竜verlined {text-decoration：overline; }竤truck {text-decoration：line-through; }竨nderlined {text-decoration：underline; }竏oubleUnderlined {text-decoration：underline;border-bottom：1px solid＃000;（HTML）增强的文章（HTML）获取PDF（189K）获取PDF（189K）更多内容喜欢这篇文章更多内容：喜欢这篇文章更多内容Nerea Sanz-Pintos Jara P zBuschmannJoséRodrigo Vergara-SalinasJoséRicardoPérez-Correa Fulgencio Saura-Calixto所有作者
Nerea Sanz-Pintos[1]; Jara Pérez-Jiménez[1,*]; Alejandro H. Buschmann[2]; José Rodrigo Vergara-Salinas[3]; José Ricardo Pérez-Correa[3] and Fulgencio Saura-Calixto[1];. Macromolecular Antioxidants and Dietary Fiber in Edible Seaweeds[J]. Journal of Food Science, 2017,82(2): 289-295