Effect of γ-irradiation pretreatment on cellulose degradation of corn stover and its implication for bioethanol production

Q1 Environmental Science

Bioresource Technology Reports Pub Date : 2025-04-07 DOI:10.1016/j.biteb.2025.102115

Hamzah Fansuri , Mahrus Ali , Askur Rahman , Sugili Putra , Fifi Nurfiana , Waringin Margi Yusmaman

{"title":"Effect of γ-irradiation pretreatment on cellulose degradation of corn stover and its implication for bioethanol production","authors":"Hamzah Fansuri , Mahrus Ali , Askur Rahman , Sugili Putra , Fifi Nurfiana , Waringin Margi Yusmaman","doi":"10.1016/j.biteb.2025.102115","DOIUrl":null,"url":null,"abstract":"<div><div>The increasing global demand for renewable energy has driven research into sustainable bioethanol production from lignocellulosic biomass. This study evaluates the effect of γ-irradiation doses (0, 250, 500, 750, and 1000 kGy) on cellulose degradation in corn stover (stalk, husk, and cob), combined with 2 % NaOH pretreatment to enhance cellulose accessibility. Maximum glucose concentrations of 204.38 mM (stalk), 287.68 mM (husk), and 309.65 mM (cob) were achieved at 1000 kGy, showing increases of 45.6 %, 22.3 %, and 22.4 %, respectively, compared to non-irradiated controls. Notably, γ-irradiation at 250 kGy resulted in a statistically significant 8 % increase in glucose content in corn cob. In contrast, higher doses were required to achieve significant enhancements in other biomass, with 500 kGy yielding a 36 % increase in corn stalk and an 18 % increase in corn husk. Surface morphological analysis revealed structural disruption in irradiated samples, facilitating enzymatic hydrolysis. These findings highlight γ-irradiation as an effective alternative to conventional pretreatments, with the potential for enhancing bioethanol production efficiency.</div></div>","PeriodicalId":8947,"journal":{"name":"Bioresource Technology Reports","volume":"30 ","pages":"Article 102115"},"PeriodicalIF":0.0000,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bioresource Technology Reports","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2589014X25000970","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Environmental Science","Score":null,"Total":0}

引用次数: 0

Abstract

The increasing global demand for renewable energy has driven research into sustainable bioethanol production from lignocellulosic biomass. This study evaluates the effect of γ-irradiation doses (0, 250, 500, 750, and 1000 kGy) on cellulose degradation in corn stover (stalk, husk, and cob), combined with 2 % NaOH pretreatment to enhance cellulose accessibility. Maximum glucose concentrations of 204.38 mM (stalk), 287.68 mM (husk), and 309.65 mM (cob) were achieved at 1000 kGy, showing increases of 45.6 %, 22.3 %, and 22.4 %, respectively, compared to non-irradiated controls. Notably, γ-irradiation at 250 kGy resulted in a statistically significant 8 % increase in glucose content in corn cob. In contrast, higher doses were required to achieve significant enhancements in other biomass, with 500 kGy yielding a 36 % increase in corn stalk and an 18 % increase in corn husk. Surface morphological analysis revealed structural disruption in irradiated samples, facilitating enzymatic hydrolysis. These findings highlight γ-irradiation as an effective alternative to conventional pretreatments, with the potential for enhancing bioethanol production efficiency.

Abstract Image

查看原文本刊更多论文

γ辐照预处理对玉米秸秆纤维素降解的影响及其对生物乙醇生产的启示

全球对可再生能源日益增长的需求推动了木质纤维素生物质可持续生物乙醇生产的研究。本研究评估了γ辐照剂量（0、250、500、750和1000 kGy）对玉米秸秆（秸秆、外壳和玉米芯）纤维素降解的影响，并结合2% NaOH预处理提高纤维素的可及性。与未辐照对照相比，在1000 kGy条件下，玉米的最大葡萄糖浓度分别达到204.38 mM（茎）、287.68 mM（壳）和309.65 mM（穗轴），分别增加45.6%、22.3%和22.4%。值得注意的是，250 kGy的γ辐照导致玉米芯葡萄糖含量显著增加8%。相比之下，需要更高的剂量才能显著提高其他生物量，500千公斤/年的剂量可使玉米秸秆增加36%，玉米外壳增加18%。表面形态分析显示辐照样品的结构破坏，促进酶解。这些发现强调了γ辐照作为传统预处理的有效替代方法，具有提高生物乙醇生产效率的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊