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Vacuum cooling technology in the Agrocybe Research on cold storage

Standard measurement calculation, based on consumer and producer of quality tea mushroom respiration to 2.2.6.1 Determination: The standing law cited. : Summation of the economic and other considerations, determination of the index weight 2.2.6.2VitC: use of 2,4 _ dinitrophenylhydrazine as: accounting for 30 percent rate of cap opening, the shrinkage rate of the 2o%, surface membrane. Off%. 3 Results and Analysis of furan 1100% 0 () parachute rate: parachute was set points,[link widoczny dla zalogowanych], not Si no. Parachute bidder out of (3o points), scores calculated as: the opening and analysis of orthogonal test 3.1: Umbrella rate score = (1 a parachute rate) X30; 3.1.1 results in Table 2 (2) Shrinkage: Shrinkage to those who do not set out Agrocybe 3.1.2 Analysis: (20 points), scores calculated as: the shrinkage rate of visual score = 3.1.2.1 analysis; (1 a shrinkage rate) X20; draw Agrocybe Table 2 Experimental factors and effective preservation (3) surface film loss rate: those who set off the surface film does not result in the diagram, as shown in Figure 1. A perfect score (2o points), scores calculated as: the loss rates of a 42-a} Preservation of the relationship with the Figure 1 shows the effect of vacuum cooling fresh Agrocybe factors order was: primary and secondary, the optimum conditions for the A2B2C. . 3.1.2.2 Analysis of variance results in Table 4. Wrap 2 vacuum cooling fresh on the effects of cold stupid (orthogonal wrap) wrap 4 analysis of variance can be seen wrapped in Table 4, factor A is a very significant factor, factor B is a significant factor, factor C is not significant. 3.1.3 Repeat the above test results and analysis of orthogonal vacuum cooling process in the best condition A2B2Cl repeat the test. Let the best treatment and control groups were compared to determine the respiration rate and preservation effect, the results consistent with the orthogonal test, and preservation of the results are satisfactory. 3.1.3.1 respiration rate respiration rate of the measured curves depict breathing, such as --- * 43. ---·Figure 2, the best treatment effect on respiration Agrocybe Figure 2 shows, the best set of curves was down respiration, breathing high front 2d delayed the emergence of the peak by 30%. 3.1.3.2 comprehensive comparison of the repeated trials and CK,[link widoczny dla zalogowanych], the Preservation and comprehensive physiological and biochemical indicators, the results discussed in Table 54, 4.1 Vacuum cooling treatment in a short time the raw material to the required cooling temperature ( 4 ℃), and because in the vacuum state, cooling,[link widoczny dla zalogowanych], large numbers of extraction of raw materials within the organization 0, and caused cooked factor C2H4, etc., double the measures effectively inhibited the in vivo material of respiratory and other physiological and biochemical activities in order to maintain the material fresh not aging, coupled with the plastic bag packaging. Can significantly reduce the general mechanical force to fight the cold cold water caused by transpiration, thereby reducing the storage of weight loss. 4.2 Vacuum cooling is currently supporting more advanced technology in fruit, vegetables, flowers on the application of more [4Jo it, but in the few reports on the application of edible fungi. Through this study, the vacuum pre-cooling technology with plastic film bag of frozen fresh Agrocybe significant supporting role, storage of ten days, no parachute, no shrinkage,[link widoczny dla zalogowanych], the surface film does not fall off, down 7% weight loss, respiratory intensity decreased 30%, V-tC 20.5% save rate. Further research showed that: Vacuum cooling technology for the preservation of other edible mushrooms also have significant secondary effects, but the specific conditions of pre-cooling process to be studied further. Table 5 Best Preservation Vacuum cooling and control physiological and biochemical indicators and comprehensive comparison of reference 1. Huang years, I and so on. 18 kinds of rare and delicious mushroom cultivation. Beijing: China Agriculture Press ,[link widoczny dla zalogowanych],1995,12-132. Department of Biology, East China Normal physiology teaching and research editor. Plant Physiology guidance. Beijing People's Education Press, a 44-1980.29-343. Department of Biology, East China Normal physiology teaching and research editor. Plant Physiology guidance. Beijing People's Education Press ,1980.56-674. Ren Tiehua. Vacuum cooling of vegetables fresh technology. Shanghai vegetables. 1993,35. High Junping, Sun natural, Zhoushan Tao. Vacuum cooling of cut rose flower water loss and the supplementary study. Horticultural University. 1994,218. (4) 381-3856. High Junping, Sun natural, Zhoushan Tao. Carnation and baby's breath really 9. Air pre-cooling in the way of water added. Agricultural Sciences in China. 1996.29 (1) 66-7210.7. Don North education, Gong Xuefeng. Fresh flowers, fruit and vegetable vacuum cooling equipment

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