Optimization Of Papaya (Carica Papaya) Juice Quality Through Acidified Blanching Water And Pectinase Enzyme Pre-treatments

Papaya (Carica papaya) is a highly perishable fruit, it could be processed into papaya juice to prolong its shelf life. However, high pectin content in papaya causes juice extraction difficulty, resulting in low yield. This study aims to determine the effect of acidified blanching water and pectinas...

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Main Author: Ong, Wen Le
Format: Monograph
Language:English
Published: Universiti Sains Malaysia 2021
Subjects:
Online Access:http://eprints.usm.my/52136/1/ONG%20WEN%20LEprints.pdf
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author Ong, Wen Le
author_facet Ong, Wen Le
author_sort Ong, Wen Le
collection USM
description Papaya (Carica papaya) is a highly perishable fruit, it could be processed into papaya juice to prolong its shelf life. However, high pectin content in papaya causes juice extraction difficulty, resulting in low yield. This study aims to determine the effect of acidified blanching water and pectinase enzyme pre-treatments on the yield, physicochemical and antioxidant properties of papaya juice, and to optimize the papaya juice quality using combined pre-treatments with response surface methodology (RSM). Individual effect of acidified blanching water (0-2.5% citric acid) and pectinase enzyme (10-30 ppm) was determined for the yield, physicochemical properties (total soluble solids (TSS), viscosity, clarity, colour, pH and titratable acidity (TA)) and antioxidant properties (total phenolic content (TPC), total flavonoid content (TFC), total carotenoid content (TCC), ascorbic acid content (AAC), DPPH scavenging activity and FRAP assay). Central composite design (CCD) was used to study the effect of acidified blanching water (0.5-1.5% citric acid) and pectinase enzyme (10-30 ppm) on the yield, physicochemical properties (TSS, viscosity, clarity, colour and pH) and antioxidant properties (TPC, TFC, TCC, DPPH and FRAP assay). Increasing concentration of acidified blanching water significantly (p<0.05) increases the clarity, lightness, yellowness and TA of papaya juice and decreases the TSS, viscosity, redness and antioxidant properties
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spelling usm.eprints-521362022-03-31T14:55:44Z http://eprints.usm.my/52136/ Optimization Of Papaya (Carica Papaya) Juice Quality Through Acidified Blanching Water And Pectinase Enzyme Pre-treatments Ong, Wen Le T1-995 Technology(General) Papaya (Carica papaya) is a highly perishable fruit, it could be processed into papaya juice to prolong its shelf life. However, high pectin content in papaya causes juice extraction difficulty, resulting in low yield. This study aims to determine the effect of acidified blanching water and pectinase enzyme pre-treatments on the yield, physicochemical and antioxidant properties of papaya juice, and to optimize the papaya juice quality using combined pre-treatments with response surface methodology (RSM). Individual effect of acidified blanching water (0-2.5% citric acid) and pectinase enzyme (10-30 ppm) was determined for the yield, physicochemical properties (total soluble solids (TSS), viscosity, clarity, colour, pH and titratable acidity (TA)) and antioxidant properties (total phenolic content (TPC), total flavonoid content (TFC), total carotenoid content (TCC), ascorbic acid content (AAC), DPPH scavenging activity and FRAP assay). Central composite design (CCD) was used to study the effect of acidified blanching water (0.5-1.5% citric acid) and pectinase enzyme (10-30 ppm) on the yield, physicochemical properties (TSS, viscosity, clarity, colour and pH) and antioxidant properties (TPC, TFC, TCC, DPPH and FRAP assay). Increasing concentration of acidified blanching water significantly (p<0.05) increases the clarity, lightness, yellowness and TA of papaya juice and decreases the TSS, viscosity, redness and antioxidant properties Universiti Sains Malaysia 2021-06 Monograph NonPeerReviewed application/pdf en http://eprints.usm.my/52136/1/ONG%20WEN%20LEprints.pdf Ong, Wen Le (2021) Optimization Of Papaya (Carica Papaya) Juice Quality Through Acidified Blanching Water And Pectinase Enzyme Pre-treatments. Project Report. Universiti Sains Malaysia. (Submitted)
spellingShingle T1-995 Technology(General)
Ong, Wen Le
Optimization Of Papaya (Carica Papaya) Juice Quality Through Acidified Blanching Water And Pectinase Enzyme Pre-treatments
title Optimization Of Papaya (Carica Papaya) Juice Quality Through Acidified Blanching Water And Pectinase Enzyme Pre-treatments
title_full Optimization Of Papaya (Carica Papaya) Juice Quality Through Acidified Blanching Water And Pectinase Enzyme Pre-treatments
title_fullStr Optimization Of Papaya (Carica Papaya) Juice Quality Through Acidified Blanching Water And Pectinase Enzyme Pre-treatments
title_full_unstemmed Optimization Of Papaya (Carica Papaya) Juice Quality Through Acidified Blanching Water And Pectinase Enzyme Pre-treatments
title_short Optimization Of Papaya (Carica Papaya) Juice Quality Through Acidified Blanching Water And Pectinase Enzyme Pre-treatments
title_sort optimization of papaya carica papaya juice quality through acidified blanching water and pectinase enzyme pre treatments
topic T1-995 Technology(General)
url http://eprints.usm.my/52136/1/ONG%20WEN%20LEprints.pdf
work_keys_str_mv AT ongwenle optimizationofpapayacaricapapayajuicequalitythroughacidifiedblanchingwaterandpectinaseenzymepretreatments