BUCKWHEAT STARCH-MYRISTIC ACID COMPLEX FORMATION: EFFECT OF REACTION TEMPERATURE AND MYRISTIC ACID CONCENTRATION ON DIGESTIBILITY PROPERTIES

Year 2022, Volume: 47 Issue: 6, 1168 - 1179, 15.12.2022

Betül Oskaybas , Ayşe Özbey , Levent Yurdaer Aydemir , Kevser Kahraman

https://doi.org/10.15237/gida.GD22116

Abstract

This study aimed to investigate the effect of different reaction conditions on the digestibility properties of buckwheat starch-myristic acid complex samples produced using different myristic acid concentrations and different reaction temperatures. Response Surface Methodology was used to investigate the effect of reaction temperature (60-90°C) and fatty acid concentrations (0.1-0.8 mmoL/g) on digestibility properties. Resistant starch (RS) contents of samples increased with an increase in reaction temperature. The reaction temperature affected the rapidly digestible starch (RDS) and slowly digestible starch (SDS) content of samples. The highest RS content (32.57%) was obtained using 0.45 mmoL/g myristic acid at 90°C. The F, p (<0.05), and R2 values indicated that the selected models were significant for the digestibility properties of samples. The complex formation of buckwheat starch with myristic acid seems promising to increase the RS content. Buckwheat appears to have the potential as an RS source, although the studies are quite new yet.

Keywords

buckwheat starch, myristic acid, resistant starch, starch-lipid complex.

Supporting Institution

TÜBİTAK

Project Number

119O031

Thanks

The authors would like to acknowledge the financial support of the Turkish Scientific and Technological Research Council (TUBITAK) (Project Number: 119O031). This work was derived from the first author's doctoral dissertation. She also expresses gratitude to TUBITAK for their support under the 2211-A PhD Scholarship Program for Domestic Priority Areas (2018-2020).

KARABUĞDAY NİŞASTASI-MİRİSTİK ASİT KOMPLEKS OLUŞUMU: REAKSİYON SICAKLIĞI VE MİRİSTİK ASİT KONSANTRASYONUNUN SİNDİRİLEBİLİRLİK ÖZELLİKLERİ ÜZERİNE ETKİSİ

Abstract

Bu çalışma, farklı miristik asit konsantrasyonları ve farklı reaksiyon sıcaklıkları kullanılarak üretilen karabuğday nişastası-miristik asit kompleksi örneklerinin sindirilebilirlik özellikleri üzerine farklı reaksiyon koşullarının etkisini araştırmayı amaçlamıştır. Reaksiyon sıcaklığının (60-90°C) ve yağ asidi konsantrasyonlarının (0.1-0.8 mmoL/g) sindirilebilirlik özellikleri üzerindeki etkisini araştırmak için Yanıt Yüzey Metodolojisi kullanılmıştır. Örneklerin enzime dirençli nişasta (EDN) içerikleri reaksiyon sıcaklığındaki artışla artmıştır. Reaksiyon sıcaklığı, örneklerin hızlı ve yavaş sindirilebilir nişasta içeriklerini etkilemiştir. En yüksek EDN içeriği (%32.57) 90°C'de 0.45 mmoL/g miristik asit kullanılarak üretilen örnekte elde edilmiştir. F, p (<0.05) ve R2 değerleri seçilen modellerin numunelerin sindirilebilirlik özellikleri için önemli olduğunu göstermiştir. Karabuğday nişastasının miristik asit ile kompleks oluşturması, EDN içeriğini artırma konusunda umut verici görünmektedir. Karabuğday, çalışmalar henüz oldukça yeni olmasına rağmen, EDN kaynağı olarak önemli bir potansiyele sahip görünmektedir.

Keywords

: karabuğday nişastası, miristik asit, dirençli nişasta, nişasta-lipit kompleksi

Project Number

119O031

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