Light/dark cycles and iron supplementation to enhance the simultaneous production of polyhydroxyalkanoates, 5-aminolevulinic acid, coenzyme Q10, and pigments through photofermentation

IF 9.7 1区环境科学与生态学 Q1 AGRICULTURAL ENGINEERING

Bioresource Technology Pub Date : 2025-04-11 DOI:10.1016/j.biortech.2025.132513

Virginia Montiel-Corona , Germán Buitrón

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Abstract

This study aimed to obtain 5-aminolevulinic acid (5-ALA), Coenzyme Q₁₀ (CoQ₁₀), polyhydroxyalkanoates (PHA), carotenoids, and bacteriochlorophylls (Bchl) through the photofermentation of residual wine lees. Light/dark cycles and iron supplementation were evaluated. Under 12-hour light/dark cycles, the production of 5-ALA, CoQ₁₀, carotenoids, and Bchl increased by 1.7, 2.8, 1.7, and 2.4 times, respectively, compared to the continuous illumination control, while PHA production decreased from 511 to 445 mg/L. Combining light/dark cycles with iron supplementation enhanced the biomass production rate. The CoQ₁₀ content increased by 4.9 times (reaching 8.8 mg/g-dw), carotenoids by 3.7 times (6.4 mg/g-dw), and Bchl by 6.4 times (17.9 mg/g-dw) compared to the control treatment, while maintaining 5-ALA at 5.3 µmol/L and PHA at 377 mg/L. The combination of light/dark cycles and iron provides a triple benefit: increased production of value-added substances, enhanced biomass production rate, and improved organic matter removal, making it an attractive option for winery effluent treatment and valorization.

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光/暗循环和补铁提高光发酵过程中聚羟基烷酸酯、5-氨基乙酰丙酸、辅酶Q10和色素的同步生产

本研究旨在通过光发酵得到5-氨基乙酰丙酸（5-ALA）、辅酶Q10 （CoQ10）、聚羟基烷酸酯（PHA）、类胡萝卜素和细菌叶绿素（Bchl）。评估光/暗循环和铁补充。在12小时的光照/暗循环下，与连续光照对照相比，5-ALA、CoQ10、类胡萝卜素和Bchl的产量分别增加了1.7倍、2.8倍、1.7倍和2.4倍，而PHA的产量从511 mg/L下降到445 mg/L。光照/暗循环与补铁相结合可提高生物量产量。与对照处理相比，CoQ10含量增加了4.9倍（达到8.8 mg/g-dw），类胡萝卜素含量增加了3.7倍（6.4 mg/g-dw）， Bchl含量增加了6.4倍（17.9 mg/g-dw），而5-ALA含量保持在5.3µmol/L， PHA含量保持在377 mg/L。光/暗循环和铁的结合提供了三重好处：增加了增值物质的生产，提高了生物质生产率，改善了有机物的去除，使其成为酒厂废水处理和增值的一个有吸引力的选择。

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来源期刊

Bioresource Technology 工程技术-能源与燃料

CiteScore

20.80

自引率

19.30%

发文量

2013

审稿时长

12 days

期刊介绍： Bioresource Technology publishes original articles, review articles, case studies, and short communications covering the fundamentals, applications, and management of bioresource technology. The journal seeks to advance and disseminate knowledge across various areas related to biomass, biological waste treatment, bioenergy, biotransformations, bioresource systems analysis, and associated conversion or production technologies. Topics include: • Biofuels: liquid and gaseous biofuels production, modeling and economics • Bioprocesses and bioproducts: biocatalysis and fermentations • Biomass and feedstocks utilization: bioconversion of agro-industrial residues • Environmental protection: biological waste treatment • Thermochemical conversion of biomass: combustion, pyrolysis, gasification, catalysis.