polymers are listed shown in Table 1. The CetylTrimethyl Ammonium Bromide (CTAB) supplied by Merck, was employed as a coupling agent[34] to confer a hydrophobic nature to nanowhiskers. CATB was used as received. 2.2. Nanowhisker extraction To prepare cellulose nanowhiskers (CNWs) suspensions in water, we used the method described by Revol et al.[36]. Cotton linters were hydrolyzed with 64 wt% sulfuric acid during 45 min at 45 °C. The suspensions were washed by repeated centrifugations and
Biology Report 6 Name : Tan Mei Jing Student No. : 2017141025 Subject : Paper Chromatography Group : 2 Date of Experiment : 31/10/2017 Date of Submission : 2/11/2017 Objectives To understand the principle and mechanism of paper chromatography. To investigate (and separate) the different pigments present in lettuce leaves by using the paper chromatography technique. Hypothesis Lettuce contains mostly chlorophylls (both α and β) for the green color. Results
BIOFUELS Two problems roused the world’s concern in recent years. One is energy crisis caused by the squandering of petroleum fuel. Second problem is environmental problems such as greenhouse effect, global warming, etc. To deal with such problems, renewable sources, utilization technology and bioenergy production technology have been developed. Bioethanol as one of the biofuel can be blended in different proportions in automobiles with gasoline. Biobutanol is also a new biofuel (Liu, Wang, & Zhang
Specific goals were to achieve 10-12% acidity using constructed lab scale production facilities and to characterize the species of vinegar bacteria used in acetification. Vinegar is the product made from the conversion of ethyl alcohol to acetic acid by a genus of bacteria, Acetobacter. Therefore, vinegar can be