Ethanol fermentation

tubes and took the melting points of each sample, through the use of both a water bath and commercial heating apparatus. Results Recrystallization: Purification of Solids Test tube # Solvent Observations 1 Cyclohexane The liquid is clear 2 Ethanol The solution is a tinted yellow liquid at room temperature 3 Methanol Slight brown tint, unknown mostly dissolved 4 Hexanes The liquid is a very clear color Figure 1: Table of possible solvents and their results 1. The solvent that seemed most…

TRIS Hcl, NBT, NADH, Ethanol, PMS, l-ascorbic acid 1. The superoxide radicals is generated in 3 ml of TrisHCl buffer (16 mM, pH 8.0) containing 1 ml of NBT (50 μM), 1 ml NADH (78 μM) and ethanol extract of sample (25 – 50 μg). 2. The reaction was started by adding 1 ml of PMS solution (10 μM) to the mixture. 3. The reaction mixture was incubated at 25° C for 5 min, the absorbance was read at 560 nm using a spectrophotometer (Schimadzu UV-Vis 1700) against blank samples using l- ascorbic acid…

Abstract: The purpose of this experiment was to prepare and standardize a sodium hydroxide solution as well as determine the molar concentration in as strong acid and the percent by mass of acetic acid in vinegar. We used volumetric analysis, also known as titration, in both experiments. The average molar concentration for NaOH was 0.2749 mol/L while the average molar concentration of the acid solution was .2493 mol/L.The average percent by mass of acetic acid in vinegar was found to be 12.3 %…

ABSTRACT Dex-Ibuprofen–polyethylene glycol (PEG) conjugates (PEG-dex-Ibu) were organized and their prospective as a prolonged release method was investigated. PEG-Dex-Ibuprofen conjugates were synthesized as of Ibuprofen and PEG with 4000 Da molecular weights by esterification in the incidence of DCC and DMAP. The PEG-dex-Ibu conjugates were characterized by FT-IR, 1H NMR, and DSC analysis. The solubility revise in aqueous system showed an improvement within the solubility of conjugates. The…

Alcohol has been a core lifestyle in Australian’s life since 1788. Drinking alcohol has become a common cultural in this country. For some university student, binge drinking even became a part of their life. Drinking and late night pub leads to the problem of alcohol related violence (Hughes, Anderson, Morleo & Bellis, 2008). Research found that there was a positive and strong relationship between density of alcohol outlets and remained violence after controlling the alcohol consumption…

Alcohol doesn 't really appeal to me because I don 't like how it taste. However I still go to parties about once a month meaning I only have three to five drinks a month which isn 't a lot on a monthly basis. Nonetheless, five drinks within five hours is still considered a lot but I still feel like a drink alcohol in moderation. I knew that there are many consequences associated with excessive drinking such as weight gain and liver problems. However I did not know that excessive alcohol use…

Diels-Alder Reaction Objective: The objective of this lab was to do a diels-alder reaction using anthracene, maleic anhydride, and xylene to create 9,10-dihydroanthracene, 10-, -succinic acid anhydride. Experimental: Anthracene (1.00g, 5.61x 10-3 mol), maleic anhydride (0.75g, 7.61x 10-3 mol), xylene (5mL, 4.71x 10-2 mol), and a stir rod were added into a round-bottomed flask. The round-bottom flask was then moved to the hood where the it was attached to a distillation column, placed on…

New method of synthesis of oligoetherols with carbazole ring Renata Lubczak Abstract: The new method of synthesis of multifuntional oligoetherols with carbazole ring suitable for obtaining the polyurethane foams of enhanced thermal resistance was presented. At the first step of the synthesis the carbazole was reacted with excess glycidol to obtain the product of (n +1) functionality, where n is number of equivalents of glycidol reacted with carbazole. Carbazole reacts with glycidol without…

Jessica Grandier Bio 204 section 201 Case Study 1a What are the normal values for PH, Erythrocyte count, Leucocyte count, Platelet count. ( 1 point each) The normal values for PH are 7.35-7.45, the normal erythrocyte count for males is 4.7 - 6.1*10^6 /ul million and for women it is 4.2 -5.4*10^6/ ul million, Leucocyte count is 4,800-10,00 mmm^3 of blood and normal platelet count is 150,00-450,00 platelet for microliters. 1b What are the terms used for increase and decrease in PH…

Fig 4.12 shows the comparison of product density of hydrotreated GO obtained using CAT-E and CAT-C. The density of hydrotreated GO from CAT-C at 370◦C was 0.8148g/ml whereas at the same temperature the density of hydrotreated GO obtained from CAT-E was 0.8302 g/ml despite sulphur and nitrogen in the GO has been reduced to less than 50 ppm and 1 ppm respectively. The reason for higher density would be due to higher aromatic content in the hydrotreated product obtained from CAT-E. This indicates…