3.2. Proximate analysis
The proximate compositions of the two types of ginger samples,
including moisture, ash, fat, fibre and protein, were determined
according to the methods of Association of Official
Analytical Chemists (AOAC, 1990). Moisture was determined by
drying to a constant weight at 105 C. The crude lipid content was
determined by extracting the sample with petroleum ether with a
Soxhlet apparatus. The protein content was determined by the
micro-Kjeldahl method. The carbohydrate content (g/100 g) was
calculated by subtracting the contents of ash, fat, fibre and protein
from total dry weight. Moisture was presented based on fresh
weight (g/100 g). Other contents were presented based on dry
weight (g/100 g).
3.2. Proximate analysis
The proximate compositions of the two types of ginger samples,
including moisture, ash, fat, fibre and protein, were determined
according to the methods of Association of Official
Analytical Chemists (AOAC, 1990). Moisture was determined by
drying to a constant weight at 105 C. The crude lipid content was
determined by extracting the sample with petroleum ether with a
Soxhlet apparatus. The protein content was determined by the
micro-Kjeldahl method. The carbohydrate content (g/100 g) was
calculated by subtracting the contents of ash, fat, fibre and protein
from total dry weight. Moisture was presented based on fresh
weight (g/100 g). Other contents were presented based on dry
weight (g/100 g).
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3.2. Proximate analysis
The proximate compositions of the two types of ginger samples,
including moisture, ash, fat, fibre and protein, were determined
according to the methods of Association of Official
Analytical Chemists (AOAC, 1990). Moisture was determined by
drying to a constant weight at 105 C. The crude lipid content was
determined by extracting the sample with petroleum ether with a
Soxhlet apparatus. The protein content was determined by the
micro-Kjeldahl method. The carbohydrate content (g/100 g) was
calculated by subtracting the contents of ash, fat, fibre and protein
from total dry weight. Moisture was presented based on fresh
weight (g/100 g). Other contents were presented based on dry
weight (g/100 g).
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