Redefining the product portfolio of oilcane bagasse biorefinery: Recovering natural colorants, vegetative lipids and sugars

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

Bioresource Technology Pub Date : 2025-01-09 DOI:10.1016/j.biortech.2025.132052

Shivali Banerjee, Galit Beraja, Kristen K. Eilts, Vijay Singh

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引用次数: 0

Abstract

Bioenergy crops have been known for their ability to produce biofuels and bioproducts. In this study, the product portfolio of recently developed transgenic sugarcane (oilcane) bagasse has been redefined for recovering natural pigments (anthocyanins), sugars, and vegetative lipids.The total anthocyanin content in oilcane bagasse has been estimated as 92.9 ± 18.9 µg/g of dried bagasse with cyanidin-3-glucoside (13.5 ± 18.9 µg per g of dried bagasse) as the most prominent anthocyanin present. More than 85 % (w/w) of the total anthocyanins were recovered from oilcane bagasse at a pretreatment temperature of 150 °C for 15 min. These conditions for the hydrothermal pretreatment also led to a 2-fold increase in the glucose yield upon the enzymatic saccharification of the pretreated bagasse. Further, a 1.5-fold enrichment of the vegetative lipids was demonstrated in the pretreated residue.Re-defining green biorefineries with multiple high-value products in a zero-waste approach is the need of the hour for attaining sustainability.

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重新定义甘蔗渣生物炼制的产品组合：回收天然色素、植物脂质和糖

生物能源作物以其生产生物燃料和生物产品的能力而闻名。在这项研究中，最近开发的转基因甘蔗甘蔗渣的产品组合被重新定义为回收天然色素（花青素），糖和植物性脂质。据估计，甘蔗渣中花青素的总含量为92.9±18.9µg/g，其中花青素-3-葡萄糖苷（每g干甘蔗渣中含量为13.5±18.9µg）是最显著的花青素。在150℃预处理15 min的条件下，蔗渣中总花青素的回收率超过85% （w/w）。在这种条件下，预处理后的蔗渣酶解糖化后的葡萄糖产量也提高了2倍。此外，在预处理后的残渣中证实了1.5倍的营养脂质富集。以零浪费的方式重新定义多种高价值产品的绿色生物精炼厂是实现可持续发展的需要。

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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.