Acid Test For Starch And Glycogen - 1153 Words

Solution #9 Clear, colorless solution. P; Purple Protein Solution (+control) #10 Clear, yellow-orange solution. N Beer #11 Clear, colorless solution. N Distilled Water(-control) #12 Clear, colorless solution. P; Purple Unknown *Table #2 shows the results of biuret test on the given 12 samples, in which 2 are indicated positive: sample #9, the positive control of this section, and sample #12, the unknown. Table #3 Iodine Test for Starch and Glycogen in the Given Samples Samples Observation of Samples†¦show more content†¦P; Reddish Brown 1% Glycogen Solution #8 Clear, colorless solution. P; Blue-Black 1% Starch Solution #9 Clear, colorless solution. N Protein Solution #10 Clear, yellow-orange solution. N Beer #11 Clear, colorless solution. N Distilled Water(-control) #12 Clear, colorless solution. N Unknown *Table #3shows the results of iodine test on the given 12 samples, in which 2 are indicated positive: sample #7, the glycogen solution, and sample #8, the starch solution. The two can also be considered as positive controls for this section. Table #4 Benedict s Test for Oligosaccharides in the Given Samples #1 Clear, colorless solution. P; Brown 1% Glucose Solution (+control) #2 Clear, colorless solution. N 0.3% Glucose -1-phosphate #3 Clear, colorless solution. P; Reddish Brown 1% Maltose Solution #4 Clear, slightly yellow solution. P; Orange Honey Solution #5 Clear, colorless solution. N 1%