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Degradation kinetics of carpaine and antioxidant properties of dried Carica papaya leaves as affected by drying methods

Carpaine in papaya leaves has the potential to treat dengue fever and it also contains antioxidants which could prevent or inhibit oxidation processes in the human body. Studies were conducted on the effects of storage on carpaine retention and antioxidant properties of dried papaya leaves. Results...

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Main Authors: Yap, Jing Ying, Hii, Ching Lik, Ong, Sze Pheng, Lim, Kuan Hon, Abas, Faridah, Pin, Kar Yong
Format: Article
Published: Walter de Gruyter 2022
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spelling oai:psasir.upm.edu.my:100882 http://psasir.upm.edu.my/id/eprint/100882/ Degradation kinetics of carpaine and antioxidant properties of dried Carica papaya leaves as affected by drying methods Yap, Jing Ying Hii, Ching Lik Ong, Sze Pheng Lim, Kuan Hon Abas, Faridah Pin, Kar Yong Carpaine in papaya leaves has the potential to treat dengue fever and it also contains antioxidants which could prevent or inhibit oxidation processes in the human body. Studies were conducted on the effects of storage on carpaine retention and antioxidant properties of dried papaya leaves. Results showed that the Weibull model could predict well the degradation kinetics of carpaine in all samples (freeze drying and hot air drying at 60 °C and 70 °C) except for hot air dried samples at 80 °C and shade dried samples (first order model). Generally, freeze dried samples showed the highest half-life whereas total polyphenols content and antioxidant properties (ABTS and DPPH free radical scavenging activities) of all dried samples decreased with storage period. An increasing trend in total colour difference (ΔE * ) was observed in all samples possibly due to chlorophyll degradation. It is thus recommended to select freeze dried samples for storage purpose due to better stability as indicated by the lowest rate constant (k = 0.0135 1/month) and the highest half-life (t1/2 = 51.2 months). Walter de Gruyter 2022-08-17 Article PeerReviewed Yap, Jing Ying and Hii, Ching Lik and Ong, Sze Pheng and Lim, Kuan Hon and Abas, Faridah and Pin, Kar Yong (2022) Degradation kinetics of carpaine and antioxidant properties of dried Carica papaya leaves as affected by drying methods. International Journal of Food Engineering, 18 (8-9). 593 - 602. ISSN 1556-3758 https://www.degruyter.com/document/doi/10.1515/ijfe-2021-0369/html?lang=en 10.1515/ijfe-2021-0369
institution UPM IR
collection UPM IR
description Carpaine in papaya leaves has the potential to treat dengue fever and it also contains antioxidants which could prevent or inhibit oxidation processes in the human body. Studies were conducted on the effects of storage on carpaine retention and antioxidant properties of dried papaya leaves. Results showed that the Weibull model could predict well the degradation kinetics of carpaine in all samples (freeze drying and hot air drying at 60 °C and 70 °C) except for hot air dried samples at 80 °C and shade dried samples (first order model). Generally, freeze dried samples showed the highest half-life whereas total polyphenols content and antioxidant properties (ABTS and DPPH free radical scavenging activities) of all dried samples decreased with storage period. An increasing trend in total colour difference (ΔE * ) was observed in all samples possibly due to chlorophyll degradation. It is thus recommended to select freeze dried samples for storage purpose due to better stability as indicated by the lowest rate constant (k = 0.0135 1/month) and the highest half-life (t1/2 = 51.2 months).
format Article
author Yap, Jing Ying
Hii, Ching Lik
Ong, Sze Pheng
Lim, Kuan Hon
Abas, Faridah
Pin, Kar Yong
spellingShingle Yap, Jing Ying
Hii, Ching Lik
Ong, Sze Pheng
Lim, Kuan Hon
Abas, Faridah
Pin, Kar Yong
Degradation kinetics of carpaine and antioxidant properties of dried Carica papaya leaves as affected by drying methods
author_facet Yap, Jing Ying
Hii, Ching Lik
Ong, Sze Pheng
Lim, Kuan Hon
Abas, Faridah
Pin, Kar Yong
author_sort Yap, Jing Ying
title Degradation kinetics of carpaine and antioxidant properties of dried Carica papaya leaves as affected by drying methods
title_short Degradation kinetics of carpaine and antioxidant properties of dried Carica papaya leaves as affected by drying methods
title_full Degradation kinetics of carpaine and antioxidant properties of dried Carica papaya leaves as affected by drying methods
title_fullStr Degradation kinetics of carpaine and antioxidant properties of dried Carica papaya leaves as affected by drying methods
title_full_unstemmed Degradation kinetics of carpaine and antioxidant properties of dried Carica papaya leaves as affected by drying methods
title_sort degradation kinetics of carpaine and antioxidant properties of dried carica papaya leaves as affected by drying methods
publisher Walter de Gruyter
publishDate 2022
_version_ 1819301227442208768
score 13.4562235

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