Shelf Life Study Of Carica Papaya Juice Preserved With Sodium Metabiulphite And Citric Acid
ABSTRACT
Juice was processed from Carica papaya (paw — paw) fruit. It
was treated with citric acid, sodium metabisulphite and combination of citric
acid and sodium metabisulphite at different concentration (0.Olppm, 0.ol5ppm,
0.02ppm and 0.025ppm), packaged in sterilized plastic bottle and then
pasteurized at 9000 for 10 minutes. It was cooled at 25°C and then stored at ambient
temperature on a shelf. The juice was analysed for vitamin C, pH, total soluble
sugars and microbial load after extraction, the first day, 14th day, 32nd day
and 47th day of storage period. The result obtained shows the unpasteurised
juice has highest vitamin C content of 26.5mg/100g. Among the treated juices,
Samples treated with 0.01 ppm combination of citric acid and sodium
metabsulphite is significantly higher in vitamin C content (21.26mg/100g). pH
decreases during storage period from 7.0 to 4.28. Unpasteurised juice has
highest microbial count of 1 .00x1 05cfu/ml after extraction, the microbia'
load increases during storage period from 1.20 X lO5cfu/ml to 6.00 X 105cfu/ml for
bacteria and 1.0 X 105cfu/ml 6.90 X 105cfu/ml for yeast + mould count. Base on
the microbial assay, the juices are safe within 14 days of storage.
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OGBONNA, C (2021). Shelf Life Study Of Carica Papaya Juice Preserved With Sodium Metabiulphite And Citric Acid. Repository.mouau.edu.ng: Retrieved Nov 25, 2024, from https://repository.mouau.edu.ng/work/view/shelf-life-study-of-carica-papaya-juice-preserved-with-sodium-metabiulphite-and-citric-acid-7-2
CHIDINMA., OGBONNA. "Shelf Life Study Of Carica Papaya Juice Preserved With Sodium Metabiulphite And Citric Acid" Repository.mouau.edu.ng. Repository.mouau.edu.ng, 06 Jul. 2021, https://repository.mouau.edu.ng/work/view/shelf-life-study-of-carica-papaya-juice-preserved-with-sodium-metabiulphite-and-citric-acid-7-2. Accessed 25 Nov. 2024.
CHIDINMA., OGBONNA. "Shelf Life Study Of Carica Papaya Juice Preserved With Sodium Metabiulphite And Citric Acid". Repository.mouau.edu.ng, Repository.mouau.edu.ng, 06 Jul. 2021. Web. 25 Nov. 2024. < https://repository.mouau.edu.ng/work/view/shelf-life-study-of-carica-papaya-juice-preserved-with-sodium-metabiulphite-and-citric-acid-7-2 >.
CHIDINMA., OGBONNA. "Shelf Life Study Of Carica Papaya Juice Preserved With Sodium Metabiulphite And Citric Acid" Repository.mouau.edu.ng (2021). Accessed 25 Nov. 2024. https://repository.mouau.edu.ng/work/view/shelf-life-study-of-carica-papaya-juice-preserved-with-sodium-metabiulphite-and-citric-acid-7-2