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Effect of Drying Techniques on Phytochemical Contents and Biological Activities on Bamboo Leaves as Potential Herbal Tea

Presently, bamboos have gained global attention for their therapeutic potential. However, it is rarely considered for its biological activities due to the limitations of studies, especially in Sabah, Malaysia. Thus, searching for the phytochemical content and biological activities among bamboo leave...

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Main Authors: Mohammad Amil Zulhilmi Benjamin, Fiffy Hanisdah Saikim, Shean Yeaw Ng, Nor Azizun Rusdi
Format: Conference or Workshop Item
Language:English
English
Published: 2022
Subjects:
QK710-899 Plant physiology
SB183-317 Field crops Including cereals, forage crops, grasses, legumes, root crops, sugar plants, textile plants, alkaloidal plants, medicinal plants
Online Access:https://eprints.ums.edu.my/id/eprint/35259/2/FULL%20TEXT.pdf
https://eprints.ums.edu.my/id/eprint/35259/5/ABSTRACT.pdf
https://eprints.ums.edu.my/id/eprint/35259/
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spelling my.ums.eprints.352592023-05-22T02:51:10Z https://eprints.ums.edu.my/id/eprint/35259/ Effect of Drying Techniques on Phytochemical Contents and Biological Activities on Bamboo Leaves as Potential Herbal Tea Mohammad Amil Zulhilmi Benjamin Fiffy Hanisdah Saikim Shean Yeaw Ng Nor Azizun Rusdi QK710-899 Plant physiology SB183-317 Field crops Including cereals, forage crops, grasses, legumes, root crops, sugar plants, textile plants, alkaloidal plants, medicinal plants Presently, bamboos have gained global attention for their therapeutic potential. However, it is rarely considered for its biological activities due to the limitations of studies, especially in Sabah, Malaysia. Thus, searching for the phytochemical content and biological activities among bamboo leaves has increased demand in certain Asian countries. Six species of bamboos, namely Bambusa vulgaris, B. multiplex, B. tuldoides, Dinochloa sublaevigata, Gigantochloa levis, and Schizostachyum brachycladum, were studied with five drying methods: sun drying, shade drying, microwave drying, oven drying, and freeze-drying. The infused leaves of bamboo extracts were analyzed for their total phenolic (TPC) and flavonoid (TFC) contents. The antioxidant activities were determined using two assays; the 2,2-diphenyl-1-picrylhydrazyl (DPPH) and the ferric reducing antioxidant power (FRAP) assays. Toxicity tests of potential bamboo extracts were investigated using the brine shrimp lethality bioassay (BSLB). Bioactive compounds of potential bamboo extracts were determined using liquid chromatography-tandem mass spectrometry (LC-MS). The freeze-drying method exhibited the highest yield for the phytochemical contents and antioxidant activities, excluding B. vulgaris, which is preferable to microwave drying. TPC and TFC results showed a range of 2.69 ± 0.01 – 12.59 ± 0.09 mg GAE/g and 0.77 ± 0.01 – 2.12 ± 0.01 mg QE/g, respectively. The IC50 of DPPH ranged from 2.92 ± 0.01 to 4.73 ± 0.02 μg/mL, showing high radical scavenging activity. FRAP values also significantly differed, ranging from 6.40 ± 0.12 to 36.65 ± 0.09 mg TE/g. Toxicity studies of potential bamboo extracts displayed no toxicity activity against the BSLB based on LC50 analysis. This data may help in utilizing the bamboo leaves as functional food applications to be developed into bamboo tea. 2022 Conference or Workshop Item PeerReviewed text en https://eprints.ums.edu.my/id/eprint/35259/2/FULL%20TEXT.pdf text en https://eprints.ums.edu.my/id/eprint/35259/5/ABSTRACT.pdf Mohammad Amil Zulhilmi Benjamin and Fiffy Hanisdah Saikim and Shean Yeaw Ng and Nor Azizun Rusdi (2022) Effect of Drying Techniques on Phytochemical Contents and Biological Activities on Bamboo Leaves as Potential Herbal Tea. In: INTERNATIONAL CONFERENCE ON FOOD SCIENCE AND NUTRITION 2022 ” Future Food: Emerging Trends, Health and Diversity, 24th-25th August 2022., Online.
institution Universiti Malaysia Sabah
building UMS Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sabah
content_source UMS Institutional Repository
url_provider http://eprints.ums.edu.my/
language English
English
topic QK710-899 Plant physiology
SB183-317 Field crops Including cereals, forage crops, grasses, legumes, root crops, sugar plants, textile plants, alkaloidal plants, medicinal plants
spellingShingle QK710-899 Plant physiology
SB183-317 Field crops Including cereals, forage crops, grasses, legumes, root crops, sugar plants, textile plants, alkaloidal plants, medicinal plants
Mohammad Amil Zulhilmi Benjamin
Fiffy Hanisdah Saikim
Shean Yeaw Ng
Nor Azizun Rusdi
Effect of Drying Techniques on Phytochemical Contents and Biological Activities on Bamboo Leaves as Potential Herbal Tea
description Presently, bamboos have gained global attention for their therapeutic potential. However, it is rarely considered for its biological activities due to the limitations of studies, especially in Sabah, Malaysia. Thus, searching for the phytochemical content and biological activities among bamboo leaves has increased demand in certain Asian countries. Six species of bamboos, namely Bambusa vulgaris, B. multiplex, B. tuldoides, Dinochloa sublaevigata, Gigantochloa levis, and Schizostachyum brachycladum, were studied with five drying methods: sun drying, shade drying, microwave drying, oven drying, and freeze-drying. The infused leaves of bamboo extracts were analyzed for their total phenolic (TPC) and flavonoid (TFC) contents. The antioxidant activities were determined using two assays; the 2,2-diphenyl-1-picrylhydrazyl (DPPH) and the ferric reducing antioxidant power (FRAP) assays. Toxicity tests of potential bamboo extracts were investigated using the brine shrimp lethality bioassay (BSLB). Bioactive compounds of potential bamboo extracts were determined using liquid chromatography-tandem mass spectrometry (LC-MS). The freeze-drying method exhibited the highest yield for the phytochemical contents and antioxidant activities, excluding B. vulgaris, which is preferable to microwave drying. TPC and TFC results showed a range of 2.69 ± 0.01 – 12.59 ± 0.09 mg GAE/g and 0.77 ± 0.01 – 2.12 ± 0.01 mg QE/g, respectively. The IC50 of DPPH ranged from 2.92 ± 0.01 to 4.73 ± 0.02 μg/mL, showing high radical scavenging activity. FRAP values also significantly differed, ranging from 6.40 ± 0.12 to 36.65 ± 0.09 mg TE/g. Toxicity studies of potential bamboo extracts displayed no toxicity activity against the BSLB based on LC50 analysis. This data may help in utilizing the bamboo leaves as functional food applications to be developed into bamboo tea.
format Conference or Workshop Item
author Mohammad Amil Zulhilmi Benjamin
Fiffy Hanisdah Saikim
Shean Yeaw Ng
Nor Azizun Rusdi
author_facet Mohammad Amil Zulhilmi Benjamin
Fiffy Hanisdah Saikim
Shean Yeaw Ng
Nor Azizun Rusdi
author_sort Mohammad Amil Zulhilmi Benjamin
title Effect of Drying Techniques on Phytochemical Contents and Biological Activities on Bamboo Leaves as Potential Herbal Tea
title_short Effect of Drying Techniques on Phytochemical Contents and Biological Activities on Bamboo Leaves as Potential Herbal Tea
title_full Effect of Drying Techniques on Phytochemical Contents and Biological Activities on Bamboo Leaves as Potential Herbal Tea
title_fullStr Effect of Drying Techniques on Phytochemical Contents and Biological Activities on Bamboo Leaves as Potential Herbal Tea
title_full_unstemmed Effect of Drying Techniques on Phytochemical Contents and Biological Activities on Bamboo Leaves as Potential Herbal Tea
title_sort effect of drying techniques on phytochemical contents and biological activities on bamboo leaves as potential herbal tea
publishDate 2022
url https://eprints.ums.edu.my/id/eprint/35259/2/FULL%20TEXT.pdf
https://eprints.ums.edu.my/id/eprint/35259/5/ABSTRACT.pdf
https://eprints.ums.edu.my/id/eprint/35259/
_version_ 1768008555618631680
score 13.211869

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