Nutrient content and in-vitro digestibility of potato waste fermented with Saccharomyces cerevisiae

Muhammad, S.A., . and Hazwani Izzati, H., . and Suyub, I.B., . and Nobilly, F., . and Yaakub, H., . (2023) Nutrient content and in-vitro digestibility of potato waste fermented with Saccharomyces cerevisiae. Malaysian Journal of Animal Science (Malaysia), 26 (1). pp. 11-17. ISSN 2550-2123

A study was carried out to evaluate the effects of Saccharomyces cerevisiae on fermenting potato waste (PW), and the in-vitro digestibility of the fermented potato via gas production. Potato waste was assigned to three treatments: PW plus zero media (P0), PW plus 5 % sugar solution (PS) and PW + 5 % sugar solution + yeast (PSY); the treatments were replicated six times and fermented for 0, 24, 48, 72 and 96 hours in a two-factor factorial design (CRD) factorial. Because of higher crude protein, ether extract and lower crude fibre contents, fermented PW at 72 hours was used for the in-vitro gas production for determination of metabolizable energy (ME), in-vitro dry matter digestibility (IVDMD) and in-vitro organic matter digestibility (IVOMD). The results of PW fermentation over time revealed that there was no interaction (P>0.05) between treatments and the time of fermentation, hence main factors were separately analysed. The dry matter (DM), crude protein (CP) and ether extract (EE) of PSY were significantly (P0.05) was observed during the remaining incubation periods. The IVDMD and IVOMD digestibility of P0, PS and PSY were similar (P>0.05). It was therefore concluded that inoculating potato waste with Saccharomyces cerevisiae and fermented for 72 hours improved nutrient contents and digestibility.

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Abstract

A study was carried out to evaluate the effects of Saccharomyces cerevisiae on fermenting potato waste (PW), and the in-vitro digestibility of the fermented potato via gas production. Potato waste was assigned to three treatments: PW plus zero media (P0), PW plus 5 % sugar solution (PS) and PW + 5 % sugar solution + yeast (PSY); the treatments were replicated six times and fermented for 0, 24, 48, 72 and 96 hours in a two-factor factorial design (CRD) factorial. Because of higher crude protein, ether extract and lower crude fibre contents, fermented PW at 72 hours was used for the in-vitro gas production for determination of metabolizable energy (ME), in-vitro dry matter digestibility (IVDMD) and in-vitro organic matter digestibility (IVOMD). The results of PW fermentation over time revealed that there was no interaction (P>0.05) between treatments and the time of fermentation, hence main factors were separately analysed. The dry matter (DM), crude protein (CP) and ether extract (EE) of PSY were significantly (P0.05) was observed during the remaining incubation periods. The IVDMD and IVOMD digestibility of P0, PS and PSY were similar (P>0.05). It was therefore concluded that inoculating potato waste with Saccharomyces cerevisiae and fermented for 72 hours improved nutrient contents and digestibility.

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Item Type:	Article
AGROVOC Term:	Saccharomyces cerevisiae
AGROVOC Term:	food nutrient content > food nutrient content Prefer using food compositionfood composition
AGROVOC Term:	in vitro digestibility
AGROVOC Term:	fermentation
AGROVOC Term:	chemical analysis
AGROVOC Term:	yeasts
AGROVOC Term:	digestibility
Geographical Term:	Malaysia
Depositing User:	Ms. Azariah Hashim
Date Deposited:	10 Feb 2025 07:28
Last Modified:	10 Feb 2025 07:28
URI:	http://webagris.upm.edu.my/id/eprint/1384

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