What changes do you think take place as the color changes upon the addition of phenol, pyrogallol or catechol and guac solution to the potato extract?
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What changes do you think take place as the color changes upon the addition of phenol, pyrogallol or catechol and guac solution to the potato extract?
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- Name the process used to remove starch from the leaves.What is the estimated natural concentration of solutes in the potato?Switchgrass is used for ethanol production. The composition of the switchgrass is 37% cellulose, 24% xylan, 3% galactan, 4% arabinan, 20% lignin, 7% extractives, and 5% ash. A dilute acid pretreatment method is applied to the switchgrass before enzymatic hydrolysis and fermentation. The pretreatment hydrolyzes 10% hexosan and 90% pentosan into monomeric sugars. Approximately 30% of the hydrolyzed pentoses further react & are decomposed to furfural. Assume that there is no decomposition of the hydrolyzed hexoses. Further Assume that lignin, extractives, and ash do not change during the pretreatment. • How much of each lignocellulosic sugar (glucose, xylose, galactose, and arabinose) is produced when pretreating 1,000 kg (dry matter) switchgrass? How much furfural is formed? • Is water consumed or produced in these pretreatment hydrolysis and dehydration reactions? How much in each?
- Below is an extract which describes the mechanism of action of aldolase during the cleavage of fructose 1, 6-bisphosphate to produce dihydroxyacetone phosphate (DHAP) and glyceraldehyde 3-phosphate (GAP). Fill in the missing words to complete the extract. Listed here is the pool of words to select from: abstracts, acidic, amine, covalent, hydroxyl, lysine, nitrogen, Schiff base, tetrahedral, water. Ring opening of F1,6BP occurs to render a linear sugar bisphosphate molecule.A __________ residue attacks the carbonyl carbon of F1,6BP. As the carbonyl Oxygen gets a negative charge, a proton is abstracted from the active site _________ amino acid. A _________ intermediate is produced. The active site basic amino acid residue _________ a proton from the lysine. A carbon- __________ double bond forms, producing a protonated Schiff base. At the same time, a solvent proton combines with the released hydroxyl group from C2 to form ________ and leaves the active site. The second active site…Which of these compounds undergo keto-enol tautomerism? (Select all that apply.) O CH3CCH3 0 CH3 CH3 11 H3C-C-C-C-CH3 I CH3 CH3 O CH3CH O=C CCH₂CH3what are the pros and cons of using lignin process for the production of vanallin?
- Would you please explain the image for me and tell me how it relates to galactosemiaA substance obtained from Willow bark in 1973 was found to reduce fever resulting from malaria, and about a century later to relieve the pain of rheunmatism. What is the ingredient in Willow bark extract? Discuss the proposed mechanism of its action.Would 1 change of xylene for 20 minutes be superior to 2 changes of xylene for 10 minutes each in terms of dewaxing results? Explain
- Positive results for Benedict’s test range from green, yellow orange to red. How does the sugar concentration and Cu2O concentration cause this? I know Cu2O is red. Why is there a green or yellow color instead of just red or some kind of red?Name three starting compounds for industrial vanillin production. Explain two genetic modifications that has been done to improve vanillin production.A group of students have carried out an experiment to investigate the relationship between the amount of growth hormone BAP in the culture medium and the growth of shoot of jckplant.They have supplemented the medium with BAP but there is another student suggested that hundred percent shooting efficiency will be obtained when the the culture media is suplemented BAP and NAA.From your point of view, state which option will you choose and explain why?