A kind of preparation method of low methoxy hawthorn pectin
A technology of low methoxyl and hawthorn fruit, which is applied in the field of food intensive processing, can solve the problems of not clearly and accurately stating the characteristics of pectin product preparation technology and pectin product, and achieve significant social and economic benefits, wide application range, and good quality. Effect of Emulsion Stability
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Embodiment 1
[0030] The present embodiment chooses Dajinxing (DA), the main product of Shandong area hawthorn variety, as the test raw material, and the specific implementation steps are as follows:
[0031] 1. Preparation of hawthorn powder
[0032] Fresh hawthorn fruits are destemmed and seeded, cut into thin slices with a thickness of 1mm, and dried with hot air at 40°C until the water content is 10%. Dried hawthorn slices are pulverized, passed through a 40-mesh sieve, and the under-sieve is the prepared hawthorn powder.
[0033] 2. Extraction and separation of hawthorn pectin
[0034] The hawthorn powder 10g prepared in step 1) and 200mL of 95% ethanol were mixed and washed continuously for 1h, centrifuged at 5000r / min for 10min, the supernatant was discarded, and the precipitate was repeatedly washed with 200mL of 95% ethanol (to remove non- cell wall components). Add acetone to the precipitate after washing with ethanol, the mass volume ratio of the precipitate and acetone is 1:1...
Embodiment 2
[0043] The present embodiment selects Shandong area main product hawthorn variety-cotton ball (MI) as test raw material, and concrete implementation steps are as follows:
[0044] 1. Preparation of hawthorn powder
[0045] Fresh hawthorn fruit is destemmed and seeded, cut into thin slices with a thickness of 1mm, and dried with hot air at 40°C until the moisture content is 8.9%. Dried hawthorn slices are pulverized, passed through a 40-mesh sieve, and the under-sieve is the prepared hawthorn powder.
[0046] 2. Extraction and separation of hawthorn pectin
[0047] Mix 20 g of the hawthorn powder prepared in step 1) with 200 mL of 95% ethanol, continue stirring and washing for 2 h, centrifuge at 5000 r / min for 10 min, discard the supernatant, and repeat washing with ethanol of the same concentration (95%) and volume (200 mL) Precipitate to remove non-cell wall components. Add acetone to the precipitate washed with ethanol, the mass volume ratio of the precipitate to acetone ...
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