Third-generation L-Lactic acid production by the microwave-assisted hydrolysis of red macroalgae Eucheuma denticulatum extract

The development of an efficient third-generation L-lactic acid (L-LA) production process from Eucheuma denticulatum extract (EDE) was achieved in this study. Microwave-assisted dilute acid hydrolysis (MADAH) and microwave-assisted hydrothermal hydrolysis (MAHTH) were chosen as the hydrolysis of EDE...

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Main Authors: Tong, K.T.X., Tan, I.S., Foo, H.C.Y., Tiong, A.C.Y., Lam, M.K., Lee, K.T.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.29656 /
Published: Elsevier Ltd 2021
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85116067938&doi=10.1016%2fj.biortech.2021.125880&partnerID=40&md5=ab9ea6927a2ee0209e2247f95146a753
http://eprints.utp.edu.my/29656/
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spelling utp-eprints.296562022-03-25T02:13:05Z Third-generation L-Lactic acid production by the microwave-assisted hydrolysis of red macroalgae Eucheuma denticulatum extract Tong, K.T.X. Tan, I.S. Foo, H.C.Y. Tiong, A.C.Y. Lam, M.K. Lee, K.T. The development of an efficient third-generation L-lactic acid (L-LA) production process from Eucheuma denticulatum extract (EDE) was achieved in this study. Microwave-assisted dilute acid hydrolysis (MADAH) and microwave-assisted hydrothermal hydrolysis (MAHTH) were chosen as the hydrolysis of EDE for the objective of increasing galactose yield. Single-factor optimization of hydrolysis of the EDE was studied, MADAH had high performance in galactose production relative to MAHTH, in which the yield and optimal conditions for both processes were 50.7 (0.1 M H2SO4, 120 °C for 25 min) and 47.8 (0 M H2SO4,160 °C for 35 min), respectively. For fermentation, the optimal L-LA yield was achieved at the inoculum cell density of 4 (w/w) Bacillus coagulans ATCC 7050 with 89.4 and 6 (w/w) Lactobacillus acidophilus LA-14 with 87.6. In addition, lipid-extracted Chlorella vulgaris residues (CVRs) as co-nutrient supplementation increased the relative abundance of B. coagulans ATCC 7050, thus benefiting L-LA production. © 2021 Elsevier Ltd Elsevier Ltd 2021 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85116067938&doi=10.1016%2fj.biortech.2021.125880&partnerID=40&md5=ab9ea6927a2ee0209e2247f95146a753 Tong, K.T.X. and Tan, I.S. and Foo, H.C.Y. and Tiong, A.C.Y. and Lam, M.K. and Lee, K.T. (2021) Third-generation L-Lactic acid production by the microwave-assisted hydrolysis of red macroalgae Eucheuma denticulatum extract. Bioresource Technology, 342 . http://eprints.utp.edu.my/29656/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description The development of an efficient third-generation L-lactic acid (L-LA) production process from Eucheuma denticulatum extract (EDE) was achieved in this study. Microwave-assisted dilute acid hydrolysis (MADAH) and microwave-assisted hydrothermal hydrolysis (MAHTH) were chosen as the hydrolysis of EDE for the objective of increasing galactose yield. Single-factor optimization of hydrolysis of the EDE was studied, MADAH had high performance in galactose production relative to MAHTH, in which the yield and optimal conditions for both processes were 50.7 (0.1 M H2SO4, 120 °C for 25 min) and 47.8 (0 M H2SO4,160 °C for 35 min), respectively. For fermentation, the optimal L-LA yield was achieved at the inoculum cell density of 4 (w/w) Bacillus coagulans ATCC 7050 with 89.4 and 6 (w/w) Lactobacillus acidophilus LA-14 with 87.6. In addition, lipid-extracted Chlorella vulgaris residues (CVRs) as co-nutrient supplementation increased the relative abundance of B. coagulans ATCC 7050, thus benefiting L-LA production. © 2021 Elsevier Ltd
format Article
author Tong, K.T.X.
Tan, I.S.
Foo, H.C.Y.
Tiong, A.C.Y.
Lam, M.K.
Lee, K.T.
spellingShingle Tong, K.T.X.
Tan, I.S.
Foo, H.C.Y.
Tiong, A.C.Y.
Lam, M.K.
Lee, K.T.
Third-generation L-Lactic acid production by the microwave-assisted hydrolysis of red macroalgae Eucheuma denticulatum extract
author_sort Tong, K.T.X.
title Third-generation L-Lactic acid production by the microwave-assisted hydrolysis of red macroalgae Eucheuma denticulatum extract
title_short Third-generation L-Lactic acid production by the microwave-assisted hydrolysis of red macroalgae Eucheuma denticulatum extract
title_full Third-generation L-Lactic acid production by the microwave-assisted hydrolysis of red macroalgae Eucheuma denticulatum extract
title_fullStr Third-generation L-Lactic acid production by the microwave-assisted hydrolysis of red macroalgae Eucheuma denticulatum extract
title_full_unstemmed Third-generation L-Lactic acid production by the microwave-assisted hydrolysis of red macroalgae Eucheuma denticulatum extract
title_sort third-generation l-lactic acid production by the microwave-assisted hydrolysis of red macroalgae eucheuma denticulatum extract
publisher Elsevier Ltd
publishDate 2021
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85116067938&doi=10.1016%2fj.biortech.2021.125880&partnerID=40&md5=ab9ea6927a2ee0209e2247f95146a753
http://eprints.utp.edu.my/29656/
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score 11.62408

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