The enhancement of bioactive phytochemicals in agarwood leaves by post-harvest application using yeast extract elicitors and evaluation of their bioactivities

doi:10.1080/09540105.2023.2265688

Paper

The enhancement of bioactive phytochemicals in agarwood leaves by post-harvest application using yeast extract elicitors and evaluation of their bioactivities

Published Nov 8, 2023 · Rattanathorn Choonong, Jakkrit Jabsanthia, Varinda Waewaram

Food and Agricultural Immunology

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Abstract

ABSTRACT Agarwood (Aquilaria crassna) leaves are commonly used as an herbal tea for health supplements. The present study aims to develop the post-harvest process of agarwood leaves using yeast extract (YE) as an elicitor and evaluate its anti-inflammatory and anti-diabetic effects. The results showed that 1% of YE elicitation for 120 min significantly increased genkwanin 5-O-β-primevoside (1.8-fold), mangiferin (1.3-fold), and total benzophenones (1.2-fold) contents over the control group. The phenylalanine ammonia-lyase (PAL) activity increased in maximal at 30 min after YE treatment. The agarwood leaf elicitation with 1% YE for 120 min showed a higher anti-inflammation effect by down-regulation of iNOS, IL-6, and COX-2 in LPS-stimulated RAW264.7 cells and an anti-diabetic effect by enhanced AMPK-α1, AMPK-α2, and GLUT4 in L6 cells over the non-treatment. Our results suggest that YE could be a biotic elicitor to enhance the phytochemical contents and increase the benefit of agarwood leaves as a health supplement. GRAPHICAL ABSTRACT

Study Snapshot

Yeast extract treatment post-harvest enhances phytochemical contents and benefits of agarwood leaves as a health supplement, with potential anti-inflammatory and anti-diabetic effects.

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

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The enhancement of bioactive phytochemicals in agarwood leaves by post-harvest application using yeast extract elicitors and evaluation of their bioactivities

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Citations

Study on efficient extraction of saponins from Polygonatum sibiricum by enzyme assisted cold isostatic pressing technology

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