Reference sample for preservation effect test, preparation method and application thereof
An effect testing and moisturizing agent technology, applied in the field of reference samples for fresh-keeping effect testing and preparation thereof, can solve the problems of difficulty in guaranteeing the uniformity of fresh vegetables, product character stability, effective guarantee of vegetable supply, and difficulty in comparison work, etc. Good consistency, high production efficiency and small experimental error
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[0058] The preparation method of the reference sample for the fresh-keeping effect test as described above includes the following steps:
[0059] The water-absorbing material, chlorophyll, humectant and antioxidant are contacted in a liquid environment; the production process is simple, the production efficiency is high, the consistency between the reference samples is good, and it can be widely used in the evaluation of the preservation effect of refrigerators and freezers , The ability comparison between laboratories in the fresh-keeping evaluation test of refrigerators and freezers has broad application prospects.
[0060] Preferably, the contact time is 4-8 min, more preferably 5-6 min.
[0061] Typical but non-limiting examples of the contact time are 4 min, 5 min, 6 min, 7 min or 8 min.
[0062] In a preferred embodiment, the method for preparing the reference sample for testing the preservation effect includes the following steps:
[0063] (a) Making a packaging pouch: Use a breath
Example Embodiment
[0074] Example 1
[0075] A reference sample for fresh-keeping effect test, including water-absorbing material, and a mixture of chlorophyll, humectant and antioxidant is absorbed in the water-absorbing material, and each piece of water-absorbing material is separated by a waterproof material and packed in a breathable water-proof bag;
[0076] Among them, the antioxidant is L-ascorbic acid, the humectant is propylene glycol, the water-absorbent material is non-woven fabric, the number of non-woven fabrics is 5 layers, the size is 6cm×9cm, the waterproof material is PE film, and the specifications of the breathable water-proof bag are 8cm×11cm;
[0077] The preparation method of the reference sample for the fresh-keeping effect test includes the following steps:
[0078] (a) Make a 8cm×11cm packaging pouch with a breathable water-proof film, sew three sides, and leave one side as the opening;
[0079] (b) Lay the large-size non-woven fabric into 5 layers. Use a cutting tool to cut the 5-l
Example Embodiment
[0086] Example 2
[0087] A reference sample for fresh-keeping effect test, including water-absorbing material, and a mixture of chlorophyll, humectant and antioxidant is absorbed in the water-absorbing material, and each piece of water-absorbing material is separated by a waterproof material and packed in a breathable water-proof bag;
[0088] Among them, the antioxidant is L-ascorbic acid, the humectant is glycerin, the water-absorbing material is non-woven fabric, the number of layers of non-woven fabric is 10 layers, the size is 8cm×13cm, the waterproof material is PET film, and the air-permeable waterproof bag The specification is 10cm×15cm;
[0089] The preparation method of the reference sample for the fresh-keeping effect test includes the following steps:
[0090] (a) Use breathable water-proof film to make a 10cm×15cm packaging pouch, sew three sides and leave one side as the opening;
[0091] (b) Lay the large-size non-woven fabric into 10 layers, and cut the 10-layer non-woven
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