Determination of the Physicochemical Changes in the Different Vegetable Oils after Fat-Product Interaction During Frying Process

Küçük Resim Yok

Tarih

2018

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

JIHAD DANESHGAHI

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

Determination of changes in physicochemical properties of different vegetable oils (sunflower, corn, hazelnut, palm, and olive oils) was aimed after the frying process with different frying material used (potato and pepper). The increase in free fatty acid content, peroxide value, viscosity and polar compound formation of oils was observed, while the reduction of the polyunsaturated fatty acid content of oils was detected with the increase of frying time. The minimum increase of free fatty acid content was determined in sunflower oil (for fried pepper %0.23; for fried potato %0.22), while the best result of peroxide values for both of frying samples was found in olive oil (for fried pepper 2.49 meq O-2/kg; for fried potato 4.11 meq O-2/kg oil). The highest increase of total polar compound was also ascertained in sunflower oil (for fried pepper %4.50; for fried potato %5.00). The increase of frying time caused a decrease of L* and a* values of oils except for olive oil and increase of b* values. The effect of frying oil or material and frying process time on physicochemical properties of oils was found statistically significant (p<0.01).

Açıklama

Anahtar Kelimeler

Physicochemical properties, Frying, Fatty acid composition, Olive oil

Kaynak

IRANIAN JOURNAL OF CHEMISTRY & CHEMICAL ENGINEERING-INTERNATIONAL ENGLISH EDITION

WoS Q Değeri

Q4

Scopus Q Değeri

Q3

Cilt

37

Sayı

6

Künye