Ultrasound treatment of herbal extraction residue to enhance enzymatic saccharification

The utilization of herbal extraction residues (HERs) for production of valuable products has gained significant momentum in recent years. In this study, Lianhua Qingwen residue (LQR) was selected as a representative HER for enzymatic saccharification. By subjecting starch-containing raw unpretreated...

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Main Authors: Zhenzhou Zhu, Sirong Wu, Benkun Qi, Caixia Wang, Jianquan Luo, Yinhua Wan
Format: Article
Language:English
Published: Elsevier 2023-12-01
Series:Results in Engineering
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2590123023006576
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author Zhenzhou Zhu
Sirong Wu
Benkun Qi
Caixia Wang
Jianquan Luo
Yinhua Wan
author_facet Zhenzhou Zhu
Sirong Wu
Benkun Qi
Caixia Wang
Jianquan Luo
Yinhua Wan
author_sort Zhenzhou Zhu
collection DOAJ
description The utilization of herbal extraction residues (HERs) for production of valuable products has gained significant momentum in recent years. In this study, Lianhua Qingwen residue (LQR) was selected as a representative HER for enzymatic saccharification. By subjecting starch-containing raw unpretreated LQR to direct hydrolysis using a combination of cellulolytic and amylolytic enzyme, a glucan conversion of around 60 % was achieved within 48 h. To further enhance the hydrolysis rate and yield, ultrasound treatment of LQR samples was conducted. Investigation into the effect of ultrasound treatment on subsequent enzymatic saccharification revealed a noteworthy acceleration in the saccharification rate of LQR, exceeding 20 % within 10 h of hydrolysis time. Notably, this enhancement was achieved even when the substrate concentration was high at 10 % under optimized conditions of 5 min of sonication at a power intensity of 1.20 kW/cm2 and a temperature of 50 °C. The improvement in efficiency can be attributed to the disruptive effect of ultrasound treatment on the structure of LQR, leading to a reduction in particle size. Consequently, the LQR particles exhibited better contact with the enzyme, promoting a more efficient saccharification process. These findings suggest that ultrasound technology holds considerable potential for enhancing the enzymatic saccharification of HERs.
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spelling doaj.art-d526697865064fd9b7304a86183e181b2023-12-20T07:36:05ZengElsevierResults in Engineering2590-12302023-12-0120101530Ultrasound treatment of herbal extraction residue to enhance enzymatic saccharificationZhenzhou Zhu0Sirong Wu1Benkun Qi2Caixia Wang3Jianquan Luo4Yinhua Wan5Hubei Engineering Research Center for Deep Processing of Green Se-rich Agricultural Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan, 430023, ChinaNational R&D Center for Se-rich Agricultural Products Processing, College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, 430023, China; State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, ChinaState Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China; Corresponding author.Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, ChinaState Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, ChinaUniversity of Chinese Academy of Sciences, Beijing, 100049, China; Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341119, ChinaThe utilization of herbal extraction residues (HERs) for production of valuable products has gained significant momentum in recent years. In this study, Lianhua Qingwen residue (LQR) was selected as a representative HER for enzymatic saccharification. By subjecting starch-containing raw unpretreated LQR to direct hydrolysis using a combination of cellulolytic and amylolytic enzyme, a glucan conversion of around 60 % was achieved within 48 h. To further enhance the hydrolysis rate and yield, ultrasound treatment of LQR samples was conducted. Investigation into the effect of ultrasound treatment on subsequent enzymatic saccharification revealed a noteworthy acceleration in the saccharification rate of LQR, exceeding 20 % within 10 h of hydrolysis time. Notably, this enhancement was achieved even when the substrate concentration was high at 10 % under optimized conditions of 5 min of sonication at a power intensity of 1.20 kW/cm2 and a temperature of 50 °C. The improvement in efficiency can be attributed to the disruptive effect of ultrasound treatment on the structure of LQR, leading to a reduction in particle size. Consequently, the LQR particles exhibited better contact with the enzyme, promoting a more efficient saccharification process. These findings suggest that ultrasound technology holds considerable potential for enhancing the enzymatic saccharification of HERs.http://www.sciencedirect.com/science/article/pii/S2590123023006576Herbal residueUltrasoundEnzymatic hydrolysisCellulaseAmylolytic enzymesBioconversion
spellingShingle Zhenzhou Zhu
Sirong Wu
Benkun Qi
Caixia Wang
Jianquan Luo
Yinhua Wan
Ultrasound treatment of herbal extraction residue to enhance enzymatic saccharification
Results in Engineering
Herbal residue
Ultrasound
Enzymatic hydrolysis
Cellulase
Amylolytic enzymes
Bioconversion
title Ultrasound treatment of herbal extraction residue to enhance enzymatic saccharification
title_full Ultrasound treatment of herbal extraction residue to enhance enzymatic saccharification
title_fullStr Ultrasound treatment of herbal extraction residue to enhance enzymatic saccharification
title_full_unstemmed Ultrasound treatment of herbal extraction residue to enhance enzymatic saccharification
title_short Ultrasound treatment of herbal extraction residue to enhance enzymatic saccharification
title_sort ultrasound treatment of herbal extraction residue to enhance enzymatic saccharification
topic Herbal residue
Ultrasound
Enzymatic hydrolysis
Cellulase
Amylolytic enzymes
Bioconversion
url http://www.sciencedirect.com/science/article/pii/S2590123023006576
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AT benkunqi ultrasoundtreatmentofherbalextractionresiduetoenhanceenzymaticsaccharification
AT caixiawang ultrasoundtreatmentofherbalextractionresiduetoenhanceenzymaticsaccharification
AT jianquanluo ultrasoundtreatmentofherbalextractionresiduetoenhanceenzymaticsaccharification
AT yinhuawan ultrasoundtreatmentofherbalextractionresiduetoenhanceenzymaticsaccharification