Impact of Mango and Pomegranate Peels Supplementation on Quality Characteristics of Yoghurt with or Without Whey Powder
I.S. Ashoush; O.I. El-Batawy; Nayra Sh. Mehanna;
Abstract
Set yoghurt was prepared from buffalo’s milk standardized to 3% fat and supplemented with 2% skim
milk powder (SMP), why powder (WP), pomegranate peel powder (PPP), mango peel powder (MPP), WP+PPP
(1:1) and WP+MPP (1:1). Survival of lactic acid bacteria, some chemical, functional properties and sensory
quality of yoghurt samples were evaluated. There were non significant differences in dry matter and fat content
among all treatment. Significant differences were observed in lactose, protein, ash, acidity diacetyl and
acetaldehyde contents in all treatment of yoghurt. Yoghurt supplemented with PPP, MPP, WP+PPP and
WP+MPP were rich with crude fibers and antioxidant contents. Supplementation the yoghurt with 2% PPP or
MPP led to significant decrease in the counts of Streptococcus thermophilus and Lactobacillus delbrueckii
subsp bulgaricus in resultant yoghurt compared with yoghurt supplemented with 2% WP and SMP. Extracts
of PPP and MPP showed a high cytotoxic effect towards HePG2 (liver), HCT116 (colon) and MCF7 (breast) cells
line. Yoghurt samples supplemented with WP+PPP and WP+MPP recorded higher flavor, appearance and
overall scores than that of samples supplemented with PPP and MPP, respectively. So, addition of 1% WP in
supplemented milk yoghurt with 1% PPP or MPP lead to significant increase in flavor score and enhance a
sensory quality of yoghurt product compared with yoghurt samples supplemented with 2% PPP or MPP.
It could be concluded, that mango or pomegranate peels powder should be incorporated with whey powder
when used as ingredients in functional yoghurt.
milk powder (SMP), why powder (WP), pomegranate peel powder (PPP), mango peel powder (MPP), WP+PPP
(1:1) and WP+MPP (1:1). Survival of lactic acid bacteria, some chemical, functional properties and sensory
quality of yoghurt samples were evaluated. There were non significant differences in dry matter and fat content
among all treatment. Significant differences were observed in lactose, protein, ash, acidity diacetyl and
acetaldehyde contents in all treatment of yoghurt. Yoghurt supplemented with PPP, MPP, WP+PPP and
WP+MPP were rich with crude fibers and antioxidant contents. Supplementation the yoghurt with 2% PPP or
MPP led to significant decrease in the counts of Streptococcus thermophilus and Lactobacillus delbrueckii
subsp bulgaricus in resultant yoghurt compared with yoghurt supplemented with 2% WP and SMP. Extracts
of PPP and MPP showed a high cytotoxic effect towards HePG2 (liver), HCT116 (colon) and MCF7 (breast) cells
line. Yoghurt samples supplemented with WP+PPP and WP+MPP recorded higher flavor, appearance and
overall scores than that of samples supplemented with PPP and MPP, respectively. So, addition of 1% WP in
supplemented milk yoghurt with 1% PPP or MPP lead to significant increase in flavor score and enhance a
sensory quality of yoghurt product compared with yoghurt samples supplemented with 2% PPP or MPP.
It could be concluded, that mango or pomegranate peels powder should be incorporated with whey powder
when used as ingredients in functional yoghurt.
Other data
Title | Impact of Mango and Pomegranate Peels Supplementation on Quality Characteristics of Yoghurt with or Without Whey Powder | Authors | I.S. Ashoush ; O.I. El-Batawy ; Nayra Sh. Mehanna | Keywords | Mango, Pomegranate peel powder, Quality characteristics, Yoghurt, Whey powder | Issue Date | 2014 | Publisher | IDOSI Publications | Journal | World Journal of Dairy & Food Sciences 9(1):57-65 | Series/Report no. | ;57-65 | ISSN | 1817-308X | DOI | http://www.idosi.org/wjdfs/wjdfs9(1).htm 10.5829/idosi.wjdfs.2014.9.1.1133 http://www.idosi.org/wjdfs/wjdfs9(1).htm |
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