Investigation of fatty acid composition, thermal and rheological behavior of yak, cow and horse fats

Jamila SMANALİEVA; Zhyldyzai OZBEKOVA; Asylbek KULMYRZAEV; Peter FİSCHER

Makale detayları

Investigation of fatty acid composition, thermal and rheological behavior of yak, cow and horse fats

Yazarlar:

Jamila SMANALİEVA | Zhyldyzai OZBEKOVA | Asylbek KULMYRZAEV | Peter FİSCHER

Yayıncı:

Kyrgyz-Turkish Manas University

Ana Başlıklar:

Uygulamalı fizik

Dergi:

MANAS Journal of Engineering 2019 Vol.7 Issue 1, pp.24-33

Belge Tipi:

Makale

Yayın Tarihi:

6/2019

Belge Dili:

İngilizce

Document ID (Org No.):

2000527926

Sıklık:

İki Yıllık

eISSN:

1694-7398

pISSN:

1694-7398

Özet:

 


The
objective of this paper was to study the fatty acid composition, and thermal and rheological
behavior of Kyrgyz yak (Bos
grunniens) visceral fats compared to visceral fats of cow (Bos taurus) and horse (Equus caballus). The result of the studу revealed that the content of saturated fatty
acids (SFA) in yak fat was higher than those of unsaturated fatty acids (UFA)
(about 58.3 and 38.0 %, respectively). The UFA content in yak fat was higher
compared to cow fat (about 27.1 %) and lower than that of horse fat (about 60.0
%). The melting temperatures determined using DSC were found to be 55.18±0.71,
54.98±3.01, 37.60±1.92 °C for yak, cow and horse fat, respectively. These
results were close to the solid-liquid transition temperature determined by
oscillation rheology (52.20±0.89 °C for yak, 53.56±3.53 °C for cow and
33.7±1.84 °C for horse fat). Rotational rheological measurements at 35 °C have
shown that yak fat had shear thinning flow behavior with high a viscosity of
226 mPas compared to horse fat, which has Newtonian flow behavior with a
viscosity of about 36 mPas (γ=100s-1). Results on properties obtained in this study will help
to understand the contribution of yak fats to the structural properties of new
products with these alternative fat sources.

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Makale detayları

Investigation of fatty acid composition, thermal and rheological behavior of yak, cow and horse fats

Yazarlar: Jamila SMANALİEVA | Zhyldyzai OZBEKOVA | Asylbek KULMYRZAEV | Peter FİSCHER

Yayıncı: Kyrgyz-Turkish Manas University

Ana Başlıklar: Uygulamalı fizik

Dergi: MANAS Journal of Engineering 2019 Vol.7 Issue 1, pp.24-33

Belge Tipi: Makale

Yayın Tarihi: 6/2019

Belge Dili: İngilizce

Document ID (Org No.): 2000527926

Sıklık: İki Yıllık

eISSN: 1694-7398

pISSN: 1694-7398

Sayı

Yazarlar:

Jamila SMANALİEVA | Zhyldyzai OZBEKOVA | Asylbek KULMYRZAEV | Peter FİSCHER

Yayıncı:

Kyrgyz-Turkish Manas University

Ana Başlıklar:

Uygulamalı fizik

Dergi:

MANAS Journal of Engineering 2019 Vol.7 Issue 1, pp.24-33

Belge Tipi:

Makale

Yayın Tarihi:

6/2019

Belge Dili:

İngilizce

Document ID (Org No.):

2000527926

Sıklık:

İki Yıllık

eISSN:

1694-7398

pISSN:

1694-7398