Effects of concentration and partial hydrolysis on functional properties of hull-less barley protein concentrates
Küçük Resim Yok
Tarih
2019
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Wageningen Academic Publishers
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Effects of protein concentration and partial hydrolysis on protein solubility (PS), foaming properties and water holding and oil absorption capacities of hull-less barley protein concentrate (HBPC) were investigated in this research. Defatted hull-less barley flour (dHBF) was used for the production of HBPCs which were prepared using different extraction methods. HBPC-1 was extracted from dHBF using 0.15 M NaCl at pH 9 according to flour to solvent ratio of 1: 10 and an isoelectric precipitation was applied at pH 5. HBPC-2 was extracted from dHBF using 0.06 M NaOH at pH 11.2 with flour to solvent ratio of 1: 20 and an isoelectric precipitation was applied at pH 5.4. HBPC-1 and HBPC-2 were applied to partial-enzyme hydrolysis with subtilisin A for producing barley protein hydrolysates. SDS-PAGE images of dHBF, HBPCs and hydrolysates were also studied to monitor the extracted and hydrolysed proteins. PS properties of HBPCs were not significantly influenced by increasing protein concentration, while the pH of the medium significantly influenced this property. The PS properties of hydrolysates at pH 6 increased as a result of the partial hydrolysis. The soluble proteins of HBPC-1 exhibited better foaming ability at all protein concentrations and pH environments. In addition, the soluble proteins of the HBPC-2 presented a better foam stability. Foaming properties were influenced by partial hydrolysis. The partial-enzyme hydrolysis did not improve the foaming properties of concentrates.
Açıklama
Anahtar Kelimeler
Hull-less Barley, Protein Concentrate, Partial Hydrolysis, Functional Properties, Gel Electrophoresis
Kaynak
Quality Assurance And Safety Of Crops & Foods
WoS Q Değeri
Q4
Scopus Q Değeri
Q2
Cilt
11
Sayı
2
