Fenugreek seed proteins: Ultrasonic‐assisted extraction, characterization, and cupcake application       
Yazarlar (3)
Arş. Gör. İzzet TÜRKER Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Gamze Nur Olgun
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Prof. Dr. Hilal İŞLEROĞLU Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Makale Türü Açık Erişim Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı Food Science and Nutrition
Dergi ISSN 2048-7177 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q2
Makale Dili Türkçe
Basım Tarihi 06-2024
Cilt No 12
Sayı 9
Sayfalar 6353 / 6366
DOI Numarası 10.1002/fsn3.4247
Makale Linki http://dx.doi.org/10.1002/fsn3.4247
Özet
In this study, fenugreek seed proteins were extracted using ultrasonic-assisted extraction with varying solid:solvent ratios (20–60 g/L) and sonication amplitudes (30%–80%) to determine optimal conditions for the highest extraction yield. The functional, structural, and nutritional characteristics of the protein isolates of fenugreek seeds were investigated. The highest yield (98.74 ± 0.49%) was achieved at a solid:solvent ratio of 43.83 g/L and an amplitude of 67.51%. The coagulated protein values of fenugreek seed protein isolates ranged from ~15.8% to 31.2%, water-holding capacities ranged from ~2.2 to 3.2 g/g, oil-holding capacities ranged from ~2.6 to 4.1 g/g, foaming capacities ranged from ~16.3% to 21.3%, foam stabilities ranged from ~59.7% to 78.1%, emulsion stabilities ranged from ~30.2 to 34.5 min, emulsion activities ranged from ~73.8 to 76.8 m2/g, and emulsion capacities ranged from ~26.9% to 30.5% under different extraction conditions. SDS-PAGE analysis revealed three distinct bands (46, 59, and 80 kDa) for the protein isolates. FT-IR spectroscopy showed a high presence of β-sheet structures. The amino acid composition analysis of fenugreek seed protein isolates was determined, revealing richness in essential amino acids (317.97 g amino acid/kg protein isolate). In addition, cupcakes enriched with protein isolates (5%, 10%, and 20% as flour substitutes) were produced, and quality properties such as color change, browning index, moisture content, water activity, baking yield, bulk density, hardness, volume, symmetry, and uniformity indexes were determined. The application of protein isolates in cupcake production demonstrated the potential of fenugreek seeds as valuable ingredients for enhancing the nutritional profile of bakery products.
Anahtar Kelimeler
coagulated protein | cupcake | fenugreek seeds | ultrasound-assisted extraction | β-Sheet