Effect of Walnut (Juglans regia L.) on the Physicochemical, Sensory, Phenolic and Antioxidant Properties of Set Type Yogurts during Storage Time

This study aims to reveal the quality properties of yogurt enriched with walnut during cold storage (4°C) for 28 days. Five sets of yogurt types were produced by using walnut at varying rates (A: 0% (control), B: 1%, C: 2.5%, D: 3.5%, E: 5%). Physicochemical, sensory, phenolic contents and antioxida...

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Main Author: Özge Duygu Okur
Format: Article
Language:English
Published: Turkish Science and Technology Publishing (TURSTEP) 2022-06-01
Series:Turkish Journal of Agriculture: Food Science and Technology
Subjects:
Online Access:http://www.agrifoodscience.com/index.php/TURJAF/article/view/4962
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author Özge Duygu Okur
author_facet Özge Duygu Okur
author_sort Özge Duygu Okur
collection DOAJ
description This study aims to reveal the quality properties of yogurt enriched with walnut during cold storage (4°C) for 28 days. Five sets of yogurt types were produced by using walnut at varying rates (A: 0% (control), B: 1%, C: 2.5%, D: 3.5%, E: 5%). Physicochemical, sensory, phenolic contents and antioxidant properties of yogurt samples was investigated during the 1st, 7th, 14th, and 28th days of storage. The study was conducted to optimize the walnut addition level to obtain better quality yogurt as a functional food. It was determined that the walnut enrichment affects the gross chemical component of yogurt samples. Yogurt sample with %5 walnuts (E) had the highest total phenolic and antioxidant activity content (respectively 1027.50 mg GAE/kg, 19.95 mM TE) among the samples. The yogurt sample with the highest sensory attribute score was the one containing 1% walnuts. Therefore, it was concluded that yogurt added with walnut could serve as functional yogurt beneficial for human health.
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spelling doaj.art-42dc857c63ed472c9910e217195d67f42023-02-15T16:12:58ZengTurkish Science and Technology Publishing (TURSTEP)Turkish Journal of Agriculture: Food Science and Technology2148-127X2022-06-011061060106510.24925/turjaf.v10i6.1060-1065.49622501Effect of Walnut (Juglans regia L.) on the Physicochemical, Sensory, Phenolic and Antioxidant Properties of Set Type Yogurts during Storage TimeÖzge Duygu Okur0Depertment of Food Engineering, Faculty of Engineering, Zonguldak Bülent Ecevit University, 67100 ZonguldakThis study aims to reveal the quality properties of yogurt enriched with walnut during cold storage (4°C) for 28 days. Five sets of yogurt types were produced by using walnut at varying rates (A: 0% (control), B: 1%, C: 2.5%, D: 3.5%, E: 5%). Physicochemical, sensory, phenolic contents and antioxidant properties of yogurt samples was investigated during the 1st, 7th, 14th, and 28th days of storage. The study was conducted to optimize the walnut addition level to obtain better quality yogurt as a functional food. It was determined that the walnut enrichment affects the gross chemical component of yogurt samples. Yogurt sample with %5 walnuts (E) had the highest total phenolic and antioxidant activity content (respectively 1027.50 mg GAE/kg, 19.95 mM TE) among the samples. The yogurt sample with the highest sensory attribute score was the one containing 1% walnuts. Therefore, it was concluded that yogurt added with walnut could serve as functional yogurt beneficial for human health.http://www.agrifoodscience.com/index.php/TURJAF/article/view/4962yogurtwalnutfunctional foodsphenolicantioxidant
spellingShingle Özge Duygu Okur
Effect of Walnut (Juglans regia L.) on the Physicochemical, Sensory, Phenolic and Antioxidant Properties of Set Type Yogurts during Storage Time
Turkish Journal of Agriculture: Food Science and Technology
yogurt
walnut
functional foods
phenolic
antioxidant
title Effect of Walnut (Juglans regia L.) on the Physicochemical, Sensory, Phenolic and Antioxidant Properties of Set Type Yogurts during Storage Time
title_full Effect of Walnut (Juglans regia L.) on the Physicochemical, Sensory, Phenolic and Antioxidant Properties of Set Type Yogurts during Storage Time
title_fullStr Effect of Walnut (Juglans regia L.) on the Physicochemical, Sensory, Phenolic and Antioxidant Properties of Set Type Yogurts during Storage Time
title_full_unstemmed Effect of Walnut (Juglans regia L.) on the Physicochemical, Sensory, Phenolic and Antioxidant Properties of Set Type Yogurts during Storage Time
title_short Effect of Walnut (Juglans regia L.) on the Physicochemical, Sensory, Phenolic and Antioxidant Properties of Set Type Yogurts during Storage Time
title_sort effect of walnut juglans regia l on the physicochemical sensory phenolic and antioxidant properties of set type yogurts during storage time
topic yogurt
walnut
functional foods
phenolic
antioxidant
url http://www.agrifoodscience.com/index.php/TURJAF/article/view/4962
work_keys_str_mv AT ozgeduyguokur effectofwalnutjuglansregialonthephysicochemicalsensoryphenolicandantioxidantpropertiesofsettypeyogurtsduringstoragetime