Impact of ultrasonic pre-treatment on drying quality of Bacopa monnieri L. Pannell

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Research Articles | Published:

Print ISSN : 0970-4078.
Online ISSN : 2229-4473.
Website:www.vegetosindia.org
Pub Email: contact@vegetosindia.org
Doi: 10.1007/s42535-023-00624-2
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Keywords: Brahmi, Pre-treatment, Ultrasonic, Bacoside A, Antioxidants


Abstract


Bacopa monnieri is a well-known Indian medicinal plant, commonly called as Brahmi known for its brain tonic and antioxidants property. Post-harvest preservation technique such as drying is essential to preserve bioactive components of medicinal plants during processing. Ultrasonication technology where ultrasound waves of frequency more than 20 kHz are used as pre-treatment prior to drying which lowers the drying time and hence gives high-quality dried herbs by reducing degradation of heat sensitive components. In this study, different ultrasonic amplitude (30, 50 and 70%) is applied for variable time (5, 10, and 15 min) and dried in hot air cabinet dryer at different temperature (40, 50, and 60 ℃) to reduce moisture of leaves from 85% to 6%. Ultrasonic pre-treatment at 50% amplitude for 10 min and drying at 50 ℃ temperature was found to be optimized with drying time of 168 min and it was having 2.69% of Bacoside A, 35.10 ± 0.65 μg TE/mg TAC.


Brahmi, Pre-treatment, Ultrasonic, Bacoside A, Antioxidants


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Acknowledgements


The authors are grateful to ICAR-DMAPR, Anand, Gujarat for providing technical support and herbage of ‘DBM-10’germplasm.


Author Information


Hegde Pavitra G.
Anand Agricultural University, Anand, India

Kamaliya Keshav B.
Anand Agricultural University, Anand, India


Damle Kedar
Anand Agricultural University, Anand, India


Damor Hiteksha I.
Anand Agricultural University, Anand, India


Saran Parmeshwar L.
ICAR-Directorate of Medicinal and Aromatic Plants Research, Boriavi, India
plsdehradun@gmail.com