Application of scoby bacterial cellulose as hydrocolloids on physicochemical, textural and sensory characteristics of mango jam

BACKGROUND: The scoby pellicle of symbiotic culture of bacteria and yeast is a by-product from kombucha fermentation. While a portion is used as starter culture, the remainder is often discarded, yet it can be a valuable source of bacterial cellulose. RESULTS: Scoby from black, green and oolong tea...

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Main Authors: Chong, Ann Qi, Chin, Nyuk Ling, A. Talib, Rosnita, Kadir Basha, Roseliza
Format: Article
Published: John Wiley and Sons 2024
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author Chong, Ann Qi
Chin, Nyuk Ling
A. Talib, Rosnita
Kadir Basha, Roseliza
author_facet Chong, Ann Qi
Chin, Nyuk Ling
A. Talib, Rosnita
Kadir Basha, Roseliza
author_sort Chong, Ann Qi
collection UPM
description BACKGROUND: The scoby pellicle of symbiotic culture of bacteria and yeast is a by-product from kombucha fermentation. While a portion is used as starter culture, the remainder is often discarded, yet it can be a valuable source of bacterial cellulose. RESULTS: Scoby from black, green and oolong tea kombucha fermentation was assessed for its hydrocolloid effects in mango jam-making through evaluation of physicochemical, textural and sensory characteristics. Quality of jam was significantly improved with water activity reduction up to 22.22% to 0.679, moisture content reduction up to 37.06% to 19.92%, and a pH drop up to 5.9% to 3.19 with the use of 20 to 100 g kg−1 scoby. In colour analysis, presence of scoby led to a brighter jam due to higher (Formula presented.) values from 30.98 to a range of 31.82 to 40.83. Texture of jam with scoby gave higher gel strength and adhesiveness, with the most prominent effects from the black tea kombucha. Overall acceptability in sensory test scoring was above 70% on a nine-point hedonic scale with the 40 g kg−1 green tea kombucha scoby jam chosen as the most preferred. CONCLUSION: Scoby gave significant contributions to jam stability, appearance and texture, showing potential as a clean-label food ingredient.
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spelling upm.eprints-1149412025-02-12T04:49:34Z http://psasir.upm.edu.my/id/eprint/114941/ Application of scoby bacterial cellulose as hydrocolloids on physicochemical, textural and sensory characteristics of mango jam Chong, Ann Qi Chin, Nyuk Ling A. Talib, Rosnita Kadir Basha, Roseliza BACKGROUND: The scoby pellicle of symbiotic culture of bacteria and yeast is a by-product from kombucha fermentation. While a portion is used as starter culture, the remainder is often discarded, yet it can be a valuable source of bacterial cellulose. RESULTS: Scoby from black, green and oolong tea kombucha fermentation was assessed for its hydrocolloid effects in mango jam-making through evaluation of physicochemical, textural and sensory characteristics. Quality of jam was significantly improved with water activity reduction up to 22.22% to 0.679, moisture content reduction up to 37.06% to 19.92%, and a pH drop up to 5.9% to 3.19 with the use of 20 to 100 g kg−1 scoby. In colour analysis, presence of scoby led to a brighter jam due to higher (Formula presented.) values from 30.98 to a range of 31.82 to 40.83. Texture of jam with scoby gave higher gel strength and adhesiveness, with the most prominent effects from the black tea kombucha. Overall acceptability in sensory test scoring was above 70% on a nine-point hedonic scale with the 40 g kg−1 green tea kombucha scoby jam chosen as the most preferred. CONCLUSION: Scoby gave significant contributions to jam stability, appearance and texture, showing potential as a clean-label food ingredient. John Wiley and Sons 2024-09-08 Article PeerReviewed Chong, Ann Qi and Chin, Nyuk Ling and A. Talib, Rosnita and Kadir Basha, Roseliza (2024) Application of scoby bacterial cellulose as hydrocolloids on physicochemical, textural and sensory characteristics of mango jam. Journal of the Science of Food and Agriculture, 105 (1). pp. 285-293. ISSN 0022-5142; eISSN: 1097-0010 https://scijournals.onlinelibrary.wiley.com/doi/10.1002/jsfa.13827 10.1002/jsfa.13827
spellingShingle Chong, Ann Qi
Chin, Nyuk Ling
A. Talib, Rosnita
Kadir Basha, Roseliza
Application of scoby bacterial cellulose as hydrocolloids on physicochemical, textural and sensory characteristics of mango jam
title Application of scoby bacterial cellulose as hydrocolloids on physicochemical, textural and sensory characteristics of mango jam
title_full Application of scoby bacterial cellulose as hydrocolloids on physicochemical, textural and sensory characteristics of mango jam
title_fullStr Application of scoby bacterial cellulose as hydrocolloids on physicochemical, textural and sensory characteristics of mango jam
title_full_unstemmed Application of scoby bacterial cellulose as hydrocolloids on physicochemical, textural and sensory characteristics of mango jam
title_short Application of scoby bacterial cellulose as hydrocolloids on physicochemical, textural and sensory characteristics of mango jam
title_sort application of scoby bacterial cellulose as hydrocolloids on physicochemical textural and sensory characteristics of mango jam
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AT atalibrosnita applicationofscobybacterialcelluloseashydrocolloidsonphysicochemicaltexturalandsensorycharacteristicsofmangojam
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