Method for distinguishing Chinese honeybee honey from Apis mellifera honey based on major royal jelly protein ingredients
A technology for the main protein of royal jelly and honey, which is applied in the direction of analyzing materials, conducting material analysis by electromagnetic means, measuring devices, etc., can solve the problems of consumer trust crisis, loss of bee product enterprises, and unfavorable development of the bee product market.
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Embodiment 1
[0020] A method for discriminating Chinese bee honey and Italian bee honey is realized through the following steps:
[0021] (1) Extraction of total protein in honey: Weigh 10g of Zhongfeng honey and Italian bee honey respectively, put each in a 50ml centrifuge tube, add 10ml of sterile water, shake and mix well, and centrifuge at 8000g / min at 4°C Centrifuge for 10 minutes to remove impurities such as beeswax and pollen. Carefully draw the supernatant into a new 50ml centrifuge tube with a pipette gun. Pre-cool the supernatant in a 4°C refrigerator for 10 minutes, then add it to a -20°C freezer for pre-cooling 20ml of absolute ethanol, stirred gently in an ice-water bath for 15 minutes, then centrifuged at a speed of 15000g / min for 10 minutes at 4°C, discarded the supernatant, added 1.5ml of sterile water to the precipitate, stirred with a glass rod, and then Shake and mix well, then divide into 1.5ml centrifuge tubes and store in -80°C refrigerator for later use. Honey from d...
Embodiment 2
[0030] The information of the honey samples in this example is shown in Table 1, and the samples were stored in a 4°C refrigerator for later use. The experiment was carried out according to the method steps of Example 1, wherein 1-4 in the sample number corresponded to channels 1-4 in the gel map, sample numbers 1-4 corresponded to channels 5-8 in the gel map, and the band results are shown in figure 1 , the results of mass spectrometry are shown in Table 2.
[0031] Table 1 Honey sample information table
[0032]
[0033]
[0034] The mass spectrometry results of the differential protein bands are as follows:
[0035] Table 2 Identification results of differential protein bands by mass spectrometry
[0036] stripe number
[0037] It can be seen from the gel map and mass spectrometry results that there are obvious differences in the protein composition of the two honeys, and the two can be identified according to the difference in the main protein of royal je...
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