Biosynthesis of Quercetin Palmitate Esters and Evaluation of their Physico‐Chemical Properties and Stability
Abstract Quercetin was acylated with palmitic acid, catalyzed by either Candida antarctica lipase B (CAL‐B) or Pseudomonas cepacia lipase C (PCL‐C) to produce quercetin palmitate esters. The effects of various operating factors including incubation temperature, reaction duration, and molar ratio of...
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crwiley:10.1002/aocs.12404 2024-09-15T17:47:01+00:00 Biosynthesis of Quercetin Palmitate Esters and Evaluation of their Physico‐Chemical Properties and Stability Saik, Amy Yi Hsan Lim, Yau Yan Stanslas, Johnson Choo, Wee Sim Kementerian Sains, Teknologi dan Inovasi 2020 http://dx.doi.org/10.1002/aocs.12404 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Faocs.12404 https://onlinelibrary.wiley.com/doi/pdf/10.1002/aocs.12404 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/aocs.12404 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of the American Oil Chemists' Society volume 97, issue 9, page 977-988 ISSN 0003-021X 1558-9331 journal-article 2020 crwiley https://doi.org/10.1002/aocs.12404 2024-08-06T04:18:23Z Abstract Quercetin was acylated with palmitic acid, catalyzed by either Candida antarctica lipase B (CAL‐B) or Pseudomonas cepacia lipase C (PCL‐C) to produce quercetin palmitate esters. The effects of various operating factors including incubation temperature, reaction duration, and molar ratio of substrates on the bioconversion yield, initial rate of reaction, and regioselectivity of the reactions were investigated. Three new esters were identified: quercetin 4′‐palmitate (C 31 H 40 O 8 , 540 g mol −1 ), quercetin 3′,4′‐dipalmitate (C 47 H 70 O 9 , 778 g mol −1 ), and quercetin 7,3′,4′‐tripalmitate (C 63 H 100 O 10 , 1016 g mol −1 ). The effects of incubation temperature, reaction duration, and molar ratio of substrates on bioconversion yields varied across the conditions. However, the highest bioconversion yield of 27.72 ± 1.64% was obtained with PCL‐C, at day 7, incubation temperature of 60 °C, quercetin:palmitic acid molar ratio of 1:20. The initial rate of reaction was significantly higher with PCL‐C. However, regioselectivity was similar for both PCL‐C‐ and CAL‐B‐catalyzed reactions with acylation occurred successively at 4´‐OH, 3´‐OH, and 7‐OH. Thin‐layer chromatography analysis showed that the three quercetin palmitate esters possessed enhanced lipophilicity (134% higher than quercetin). Besides, in silico investigation showed that quercetin 4′‐palmitate had a higher partition coefficient (log P ) value than the parent compounds, indicating improved solubility. During gastrointestinal tract simulation, quercetin palmitate esters were recovered in the range of 71.03% to 79.36% after digestion, which were significantly higher than quercetin at 40.43 ± 8.71%. Quercetin 4′‐palmitate was also found stable over 28 days of storage. Due to improved lipophilicity, solubility, and stability, quercetin 4′‐palmitate has the potential to be used in topical applications. Article in Journal/Newspaper Antarc* Antarctica Wiley Online Library Journal of the American Oil Chemists' Society 97 9 977 988 |
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Wiley Online Library |
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English |
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Abstract Quercetin was acylated with palmitic acid, catalyzed by either Candida antarctica lipase B (CAL‐B) or Pseudomonas cepacia lipase C (PCL‐C) to produce quercetin palmitate esters. The effects of various operating factors including incubation temperature, reaction duration, and molar ratio of substrates on the bioconversion yield, initial rate of reaction, and regioselectivity of the reactions were investigated. Three new esters were identified: quercetin 4′‐palmitate (C 31 H 40 O 8 , 540 g mol −1 ), quercetin 3′,4′‐dipalmitate (C 47 H 70 O 9 , 778 g mol −1 ), and quercetin 7,3′,4′‐tripalmitate (C 63 H 100 O 10 , 1016 g mol −1 ). The effects of incubation temperature, reaction duration, and molar ratio of substrates on bioconversion yields varied across the conditions. However, the highest bioconversion yield of 27.72 ± 1.64% was obtained with PCL‐C, at day 7, incubation temperature of 60 °C, quercetin:palmitic acid molar ratio of 1:20. The initial rate of reaction was significantly higher with PCL‐C. However, regioselectivity was similar for both PCL‐C‐ and CAL‐B‐catalyzed reactions with acylation occurred successively at 4´‐OH, 3´‐OH, and 7‐OH. Thin‐layer chromatography analysis showed that the three quercetin palmitate esters possessed enhanced lipophilicity (134% higher than quercetin). Besides, in silico investigation showed that quercetin 4′‐palmitate had a higher partition coefficient (log P ) value than the parent compounds, indicating improved solubility. During gastrointestinal tract simulation, quercetin palmitate esters were recovered in the range of 71.03% to 79.36% after digestion, which were significantly higher than quercetin at 40.43 ± 8.71%. Quercetin 4′‐palmitate was also found stable over 28 days of storage. Due to improved lipophilicity, solubility, and stability, quercetin 4′‐palmitate has the potential to be used in topical applications. |
author2 |
Kementerian Sains, Teknologi dan Inovasi |
format |
Article in Journal/Newspaper |
author |
Saik, Amy Yi Hsan Lim, Yau Yan Stanslas, Johnson Choo, Wee Sim |
spellingShingle |
Saik, Amy Yi Hsan Lim, Yau Yan Stanslas, Johnson Choo, Wee Sim Biosynthesis of Quercetin Palmitate Esters and Evaluation of their Physico‐Chemical Properties and Stability |
author_facet |
Saik, Amy Yi Hsan Lim, Yau Yan Stanslas, Johnson Choo, Wee Sim |
author_sort |
Saik, Amy Yi Hsan |
title |
Biosynthesis of Quercetin Palmitate Esters and Evaluation of their Physico‐Chemical Properties and Stability |
title_short |
Biosynthesis of Quercetin Palmitate Esters and Evaluation of their Physico‐Chemical Properties and Stability |
title_full |
Biosynthesis of Quercetin Palmitate Esters and Evaluation of their Physico‐Chemical Properties and Stability |
title_fullStr |
Biosynthesis of Quercetin Palmitate Esters and Evaluation of their Physico‐Chemical Properties and Stability |
title_full_unstemmed |
Biosynthesis of Quercetin Palmitate Esters and Evaluation of their Physico‐Chemical Properties and Stability |
title_sort |
biosynthesis of quercetin palmitate esters and evaluation of their physico‐chemical properties and stability |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1002/aocs.12404 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Faocs.12404 https://onlinelibrary.wiley.com/doi/pdf/10.1002/aocs.12404 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/aocs.12404 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Journal of the American Oil Chemists' Society volume 97, issue 9, page 977-988 ISSN 0003-021X 1558-9331 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/aocs.12404 |
container_title |
Journal of the American Oil Chemists' Society |
container_volume |
97 |
container_issue |
9 |
container_start_page |
977 |
op_container_end_page |
988 |
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1810495498801381376 |