สืบค้นงานวิจัย
Sequential Fractionation of Palm Empty Fruit Bunch and Microwave-Assisted Depolymerization of Lignin for Producing Monophenolic Compounds
Panyadee R. - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): Sequential Fractionation of Palm Empty Fruit Bunch and Microwave-Assisted Depolymerization of Lignin for Producing Monophenolic Compounds
ผู้แต่ง / หัวหน้าโครงการ (EN): Panyadee R.
บทคัดย่อ (EN): We develop a sequential fractionation of palm empty fruit bunches (EFB) and microwave-assisted depolymerization of lignin for producing monophenolic compounds with high yields. EFB has been known as a low-priced and abandoned residue from the palm oil milling process due to its low heating value and generation of toxic gases upon burning; therefore, valorization of EFB has been an important task for circular economy. In this study, a subsequent alkaline hot compressed water fractionation to separate hemicellulose and lignin from cellulose has been studied. The lignin separation by lignin precipitation and a filtration process followed by microwave-assisted lignin oxidative depolymerization to high value phenolic compounds was proposed. We systematically screened many catalysts as well as investigated reaction conditions (such as the concentration of hydrogen peroxide, reaction time, etc.) to achieve the highest yield of lignin-derived phenolic compounds. It was found that the optimal conditions for depolymerization of pretreated EFB lignin were (i) NaOH solution with 2.5% (w/w) hydrogen peroxide, (ii) microwave (300 W) for 15 min, and (iii) bimetallic Cu(OH)2 and Fe2O3 catalysts. The highest percentage of the total phenolic compound concentration peak area is 91.78%, including 42.84% of syringol, 5.42% of vanillin, 8.71% of acetovanillone, 6.65% of syringaldehyde, and 28.16% of acetosyringone. The proposed sequential fractionation and microwave-assisted treatment would be promising for converting other lignocellulosic raw biomass to useful phenolic compounds. © 2018 American Chemical Society.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เอกสารแนบ (EN): https://www.scopus.com/inward/record.uri?eid=2-s2.0-85057553292&doi=10.1021%2facssuschemeng.8b04246&partnerID=40&md5=7126d244de54e73afbd520e378a772ab
เผยแพร่โดย (EN): มหาวิทยาลัยมหิดล
คำสำคัญ (EN): Lignin
เจ้าของลิขสิทธิ์ (EN): มหาวิทยาลัยมหิดล
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การอ้างอิง

Panyadee R.. "Sequential Fractionation of Palm Empty Fruit Bunch and Microwave-Assisted Depolymerization of Lignin for Producing Monophenolic Compounds". ไม่ระบุหน่วยงาน. ม.ป.ป.

Panyadee R.. "Sequential Fractionation of Palm Empty Fruit Bunch and Microwave-Assisted Depolymerization of Lignin for Producing Monophenolic Compounds". ไม่ระบุหน่วยงาน. ม.ป.ป.. Print.



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Sequential Fractionation of Palm Empty Fruit Bunch and Microwave-Assisted Depolymerization of Lignin for Producing Monophenolic Compounds
Panyadee R.
มหาวิทยาลัยมหิดล
ไม่ระบุวันที่เผยแพร่
Chemical-free fractionation of palm empty fruit bunch and palm fiber by hot-compressed water technique for ethanol production Hydrothermal pretreatment with sulfonated bentonite catalyst enhances potassium removal and bioconversion of oil palm empty fruit bunch to sugar and biohydrogen Palm fruit thresher เครื่องแยกผลปาล์ม Catalytic depolymerization of organosolv lignin from bagasse by carbonaceous solid acids derived from hydrothermal of lignocellulosic compounds Changes in fruit quality and volatile flavor compounds during on-tree maturation of longkong Study on Lignin and Cellulose Total Content in Two Rubber Clones Planted in Different Densities Ionosolv pretreatment of sugarcane bagasse and rice straw assisted by catalytic hydrothermal and microwave heating for biorefining Design, development and evaluation of an automatic fruit-juice pasteurization system using microwave – ultrasonic waves Phenolic compounds removal by grasses and soil bacteria after land application of treated palm oil mill effluent: A pot study Herb The series #16 วิธีการสกัดสารสำคัญ: การสกัดด้วยคลื่นไมโครเวฟ (Microwave-assisted extraction: MAE)
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