{"title":"Quinoa Proteins Isolate, a Candidate for Functional Ingredients Design.","authors":"Alejandra J Rubinstein, Oscar E Pérez","doi":"10.1007/s11130-024-01242-2","DOIUrl":null,"url":null,"abstract":"<p><p>The objective of the present contribution was to design and characterize resveratrol (RSV) and tocopherol (TOC) loaded quinoa protein (QP) nanocomplexes, their antioxidant and antiradical functionality were also evaluated. QP intrinsic fluorescence spectra showed a quenching effect exerted by RSV and TOC, demonstrating protein-bioactive compounds interactions. Stern-Volmer and Scatchard models application confirmed the static quenching effect and allowed to obtain parameters that described the QP-RSV or QP-TOC complexation process. Isothermal titration calorimetry allowed obtaining thermodynamic parameters to describe the interaction between RSV or TOC with QP. Protein aggregates up to 40 nm in diameter were induced by bioactive compounds as detected by atomic force microscopy. QP-RSV and QP-TOC nanocomplexes showed additive effect in their antioxidant capacity. These nanocomplexes could constitute a real platform for the design of functional ingredients.</p>","PeriodicalId":20092,"journal":{"name":"Plant Foods for Human Nutrition","volume":"80 1","pages":"7"},"PeriodicalIF":3.1000,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Plant Foods for Human Nutrition","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1007/s11130-024-01242-2","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
引用次数: 0
Abstract
The objective of the present contribution was to design and characterize resveratrol (RSV) and tocopherol (TOC) loaded quinoa protein (QP) nanocomplexes, their antioxidant and antiradical functionality were also evaluated. QP intrinsic fluorescence spectra showed a quenching effect exerted by RSV and TOC, demonstrating protein-bioactive compounds interactions. Stern-Volmer and Scatchard models application confirmed the static quenching effect and allowed to obtain parameters that described the QP-RSV or QP-TOC complexation process. Isothermal titration calorimetry allowed obtaining thermodynamic parameters to describe the interaction between RSV or TOC with QP. Protein aggregates up to 40 nm in diameter were induced by bioactive compounds as detected by atomic force microscopy. QP-RSV and QP-TOC nanocomplexes showed additive effect in their antioxidant capacity. These nanocomplexes could constitute a real platform for the design of functional ingredients.
期刊介绍：
Plant Foods for Human Nutrition (previously Qualitas Plantarum) is an international journal that publishes reports of original research and critical reviews concerned with the improvement and evaluation of the nutritional quality of plant foods for humans, as they are influenced by:
- Biotechnology (all fields, including molecular biology and genetic engineering)
- Food science and technology
- Functional, nutraceutical or pharma foods
- Other nutrients and non-nutrients inherent in plant foods
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