Journal Article


Brijesh K. Tiwari
Joseph P. Kerry
Nigel P. Brunton
Sabine M. Harrison
K. Shikha Ojha



principal component analysis hypocholesterolemic ultrasound frequency microwave assisted extraction fatty acid composition drying probiotics atherogenicity thrombogenicity gas chromatography

Statistical approaches to access the effect of Lactobacillus sakei culture and ultrasound frequency on fatty acid profile of beef jerky (2017)

Abstract The objective of this study was to investigate the effect of ultrasonic frequencies and drying time on fatty acid profiles of beef jerky samples possessing different microbial compositions. Beef slices were cured using curing solutions formulated both with and without Lactobacillus sakei. Curing was carried out for 18 h at 4 °C prior to hot air drying at 60 °C for 4 h. Jerky samples from both treatment groups were then subjected to ultrasonic frequencies of 25 kHz, 33 kHz and 45 kHz for 30 min. Beef jerky samples were subsequently analysed for fatty acid profile using Gas Chromatography. In the present study, beef slices showed a high level of MUFAs, which accounted for 45.6–53.8%, followed by the SFAs (36.3–47.8%) and PUFAs (4.8–13.7%), respectively. Results demonstrated a significant effect of beef jerky processing on fatty acid profile. Various correlation analyses showed that changes in fatty acid profiles were significantly affected by individual and/or interactive effects of L. sakei, drying time and ultrasonic frequency.
Collections Ireland -> University College Cork -> College of Science, Engineering and Food Science
Ireland -> University College Cork -> Food and Nutritional Sciences - Journal Articles
Ireland -> University College Cork -> Food and Nutritional Sciences

Full list of authors on original publication

Brijesh K. Tiwari, Joseph P. Kerry, Nigel P. Brunton, Sabine M. Harrison, K. Shikha Ojha

Experts in our system

Brijesh K. Tiwari
Total Publications: 49
J P Kerry
University College Cork
Total Publications: 130
Nigel Brunton
Total Publications: 70
K. Shikha Ojha
University College Cork
Total Publications: 9