NDLI: Combined Fungal and Mild Acid Pretreatment of Glycyrrhiza uralensis Residue for Enhancing Enzymatic Hydrolysis and Oil Production

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Combined Fungal and Mild Acid Pretreatment of Glycyrrhiza uralensis Residue for Enhancing Enzymatic Hydrolysis and Oil Production

Content Provider	Semantic Scholar
Author	Gui, Xiaohua Wang, Guilin Hu, Mengjie Yan, Yunjun
Copyright Year	2013
Abstract	The feasibility of the combination of fungal with mild acid pretreatments of Glycyrrhiza uralensis residue (GUR) for enzymatic hydrolysis and oil production was studied. Combined pretreatment with Phanerochaete chrysosporium and 2.5% sulfuric acid was shown to be more effective than the acid-only pretreatment. Subsequently, the residue obtained from acid hydrolysis was subjected to enzymatic hydrolysis to generate fermentable sugars for oil production by Chlorella protothecoides. The reducing sugar yield of enzyme hydrolysate from co-treated GUR was 1.08to 1.71-fold higher than that obtained from acid-treated GUR under the same conditions. The highest cell dry and oil yield from co-treated GUR reached 4.16 and 1.66 g/L dry weight, respectively, values which were 2.1and 3.32-fold higher than those using glucose as a carbon source. This study suggested that combined pretreatment with P. chrysosporium and 2.5% sulfuric acid is an effective strategy for enhancing enzymatic hydrolysis and microalgal oil production from GUR.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://bioresources.cnr.ncsu.edu/BioRes_08/BioRes_08_4_5485_Gui_WHDCYY_Combined_Fungal_Acid_Treat_G_uralensis_4513.pdf
Language	English
Access Restriction	Open
Subject Keyword	Chlorella vulgaris extract Chrysosporium Glucose Glycyrrhiza glabra extract Glycyrrhiza uralensis P (complexity) Residue number system Sugars Sulfuric acid Thioctic Acid
Content Type	Text
Resource Type	Article

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