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This document presents the results of a lipid extraction experiment on four different food samples: chocolate chips, potato chips, sunflower seeds, and biscuits. It provides the weight measurements taken during the experiment and calculates the percentage of lipid extracted from each food sample using two different methods: from the petroleum ether and from the solid sample. The key results found that chocolate chips had the highest % lipid extraction from petroleum ether at 8.35% while biscuits had the highest % lipid extraction from the solid sample at 33.41%.

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30 views3 pages

Result

This document presents the results of a lipid extraction experiment on four different food samples: chocolate chips, potato chips, sunflower seeds, and biscuits. It provides the weight measurements taken during the experiment and calculates the percentage of lipid extracted from each food sample using two different methods: from the petroleum ether and from the solid sample. The key results found that chocolate chips had the highest % lipid extraction from petroleum ether at 8.35% while biscuits had the highest % lipid extraction from the solid sample at 33.41%.

Uploaded by

api-389840384
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as DOCX, PDF, TXT or read online on Scribd
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Result

Food Weight of Weight of Weight of weight of beaker Weight of Weight lost % lipid extraction
sample empty beaker crushed with dried sample beaker from food
beaker and with raw food, with glass rod, g with dried (weight of lipid
glass rod, g crushed g sample extraction), g
(w1) raw food Before After with glass From From solid
and glass heat, heat, rod, g petroleum sample
rod, g (w2) (w3) (w4) (w5) ether
Chocolate 51.953 53.242 1.289 56.620 51.893 35.768 4.727 8.35% 32.82 %
chips

Potato 52.214 56.6270 4.413 47.486 44.843 38.282 2.643 5.57 % 32.40 %
chips

Sundflower 56.858 58.8640 1.706 56.387 52.735 40.868 11.867 6.48% 30.57%
seed

Biscuits 51.358 53.4301 2.0721 46.689 43.196 35.580 7.616 7.48% 33.41%

Calculation

a) From petroleum ether

𝑤3−𝑤4
% lipid extraction = x 100
𝑤3

1. Chocolate chips

56.620−51.893
x100
56.620
=8.35%

2. Potato chips

47.486−44.843
x 100
47.486

= 5.57 %

3. Sunflower seed

56.387−52.735
x 100
56.387

= 6.48%

4. Biscuit

46.689−43.196
x 100
46.689

= 7.48%

b) From solid sample

𝑤2−𝑤5
% lipid extraction = x 100
𝑤2

1. Chocolate chips

53.242−35.768
x100
53.242

=32.82 %
2. Potato chips

56.627−38.282
x 100
56.627

= 32.40 %

3. Sunflower seed

58.864−40.868
x 100
58.864

= 30.57%

4. Biscuits

53.4301−35.580
x 100
53.4301

= 33.41%

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