Two-Stage Acid-Alkali Pretreatment of Vetiver Grass to Enhance the Subsequent Sugar Release by Cellulase Digestion

2021 ◽  
Author(s):  
Vu Thi Thanh Huong ◽  
Thanaphat Atjayutpokin ◽  
Piyawat Chinwatpaiboon ◽  
Siwaporn Meejoo Smith ◽  
Supakorn Boonyuen ◽  
...  
Keyword(s):  
Vetiver Grass ◽  
Alkali Pretreatment ◽  
Two Stage ◽  
Sugar Release ◽  
Cellulase Digestion

Effect of Dilute Alkali Pretreatment on Sugar Release from Transgenic Switchgrass

2012 ◽  
Author(s):  
Ziyu Wang ◽  
Jiele Xu ◽  
Pankaj Pandey ◽  
Jay J Cheng ◽  
Ruyu Li ◽  
...  
Keyword(s):  
Alkali Pretreatment ◽  
Sugar Release

Thermostable xylanase-aided two-stage hydrolysis approach enhances sugar release of pretreated lignocellulosic biomass

2018 ◽  
Vol 257 ◽  
pp. 334-338 ◽  
Author(s):  
Lingfeng Long ◽  
Dong Tian ◽  
Rui Zhai ◽  
Xun Li ◽  
Yu Zhang ◽  
...  
Keyword(s):  
Lignocellulosic Biomass ◽  
Thermostable Xylanase ◽  
Two Stage ◽  
Sugar Release

scholarly journals BIOCONVERSION OF BAMBOO TO BIOETHANOL USING THE TWO-STAGE ORGANOSOLV AND ALKALI PRETREATMENT

BioResources ◽  
2012 ◽  
Vol 7 (4) ◽  
Author(s):  
Zhiqiang Li ◽  
Zehui Jiang ◽  
Benhua Fei ◽  
Xing'e Liu ◽  
Yan Yu
Keyword(s):  
Alkali Pretreatment ◽  
Two Stage

Multi-Scale Visualization of Dynamic Changes in Poplar Cell Walls During Alkali Pretreatment

2014 ◽  
Vol 20 (2) ◽  
pp. 566-576 ◽  
Author(s):  
Zhe Ji ◽  
Jianfeng Ma ◽  
Feng Xu
Keyword(s):  
Cell Walls ◽  
Morphological Changes ◽  
Middle Lamella ◽  
Alkali Pretreatment ◽  
Dynamic Changes ◽  
Sugar Release ◽  
Multi Scale ◽  
Whole Process ◽  
Synergistic Mechanism ◽  
Main Components

AbstractAlkali pretreatment is a promising pretreatment technology that can effectively deconstruct plant cell walls to enhance sugar release performance. In this study, multi-scale visualization of dynamic changes in poplar cell walls during sodium hydroxide pretreatment (2% w/v, 121°C) was carried out by light microscopy (LM), confocal Raman microscopy (CRM) and atomic force microscopy (AFM). LM observations indicated that swelling occurred primarily in the secondary wall (S) but alkali had little effect on the cell corner middle lamella (CCML). Correspondingly, there was a preferential delignification in the S at the beginning of pretreatment, while the level of delignification in CCML (~88%) was higher than that in the S (~83%) for the whole process revealed by Raman spectra. It also suggested that prolonging residence time to 180 min would not remove lignin completely but cause rapid loss of carbohydrates, which was further visualized by Raman spectroscopy images. Furthermore, AFM measurements illustrated that pretreatment with alkali exposed the embedded microfibrils from noncellulosic polymers clearly, enlarged the diameter of microfibrils, and decreased the surface porosity. These results suggested that there was a synergistic mechanism of lignocellulose deconstruction regarding cell wall swelling, main components dissolution, and microfibril morphological changes that occurred during alkali pretreatment.

Two-stage self-seeding method for preparation of single crystals of poly(phenylene sulfide)

1989 ◽  
Vol 47 ◽  
pp. 368-369
Author(s):  
Sengshiu Chung ◽  
Peggy Cebe
Keyword(s):  
Single Crystals ◽  
High Performance ◽  
Dilute Solution ◽  
Two Stage ◽  
Annealing Behavior ◽  
High Performance Polymers ◽  
Seeding Method ◽  
Phenylene Sulfide

We are studying the crystallization and annealing behavior of high performance polymers, like poly(p-pheny1ene sulfide) PPS, and poly-(etheretherketone), PEEK. Our purpose is to determine whether PPS, which is similar in many ways to PEEK, undergoes reorganization during annealing. In an effort to address the issue of reorganization, we are studying solution grown single crystals of PPS as model materials.Observation of solution grown PPS crystals has been reported. Even from dilute solution, embrionic spherulites and aggregates were formed. We observe that these morphologies result when solutions containing uncrystallized polymer are cooled. To obtain samples of uniform single crystals, we have used two-stage self seeding and solution replacement techniques.

364: Two stage "Progressive Elongation of Spermatic Cord" Technique in Criptorchidism with very short Spermatic Vessels

2007 ◽  
Vol 177 (4S) ◽  
pp. 121-121
Author(s):  
Antonio Dessanti ◽  
Diego Falchetti ◽  
Marco Iannuccelli ◽  
Susanna Milianti ◽  
Gian P. Strusi ◽  
...  
Keyword(s):  
Spermatic Cord ◽  
Two Stage

360: A Contemporary Analysis of Two-Stage Hypospadias Repair

2007 ◽  
Vol 177 (4S) ◽  
pp. 120-120
Author(s):  
Pamela I. Ellsworth ◽  
Anthony Caldamone
Keyword(s):  
Hypospadias Repair ◽  
Two Stage

Two-Stage Gastric Surgery Urged for Superobese

2005 ◽  
Vol 38 (18) ◽  
pp. 68
Author(s):  
SHARON WORCESTER
Keyword(s):  
Gastric Surgery ◽  
Two Stage

A DOUBLE COAXIAL DELIVERY SYSTEM FOR DEPLOYMENT OF A TWO-STAGE STENT-GRAFT: An experimental feasibility study

2000 ◽  
Vol 41 (1) ◽  
pp. 67-72 ◽  
Author(s):  
A. Kónya ◽  
K.C. Wright
Keyword(s):  
Feasibility Study ◽  
Stent Graft ◽  
Delivery System ◽  
Two Stage

Two Stage Randomized Response Schemes for Estimating a Multinomial

1975 ◽  
Vol 4 (11) ◽  
pp. 1021-1032
Author(s):  
Yosef Hochberg
Keyword(s):  
Randomized Response ◽  
Two Stage
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