42results about How to "Not easy to oxidize and change color" patented technology

The invention discloses a processing method for dendrobium nobile lindl flowers. The method includes picking dendrobium nobile lindl flowers, putting cleaned dendrobium nobile lindl flowers into a soaking solution to soak and perform color protection treatment, and taking the flowers out to drain, wherein the soaking solution includes nisin, vitamin C, cellulase, glucose oxidase and phytic acid; filling the dendrobium flowers after color protection treatment into Xinhui dried tangerine peel mandarin peels, covering fruit covers, and placing the dried tangerine peel mandarin oranges in a charging tray; and putting the charging tray into a freeze dryer, starting a vacuum pump to perform vacuum-pumping for 1-1.5 h, performing heating to 35-40 DEG C to dry for 2 h, adjusting temperature to 45-50 DEG C to dry for 8 h, performing packaging after cooling, and obtaining dried dendrobium nobile lindl flowers after storing at cool and dry places. Through the method, the effective nutrient compositions, appearance and colors of dendrobium flowers can be maximumly reserved, and the dendrobium flowers can be preserved for a long time and is not easy to oxidized and discolored; and as the dendrobium flowers fuses the fruit fragrance of the Xinhui dried tangerine peel mandarin oranges, the tea can be mellow and thick in taste, fragrant and pleasant and can be deeply loved by consumers.

The invention discloses a preparation method of deep-fried crispy lotus root strips. The preparation method comprises the following steps: cleaning fresh lotus roots and removing the peel of the fresh lotus roots, carrying out blanching, color protection and softening treatment to lotus root segments, cooling, cutting into lotus root strips, draining water on the surfaces of the lotus root strips, adhering a water-retention powder layer by use of a gelatinized starch slime layer on the surfaces of the lotus root strips, forming a water-resisting layer on the surfaces of the lotus root strips, hanging crispy paste on the lotus root strips adhered with the water-retention powder layer, coating breadcrumbs, frying, deoiling, air cooling and packaging. The method is used for solving the technical problems of moisture seepage and oil infiltration in a storage process of the deep-fried crispy lotus root strips and can ensure that the deep-fried crispy lotus root strips keep the original crispy character; and the prepared deep-fried crispy lotus root strips can keep the crispy character for more than 2 days at normal temperature, are appropriate in hardness, are difficultly oxidized and discolored, are delicious in taste, are crispy in mouthfeel, and are the healthy, convenient and delicious fried food.

The invention relates to the technical field of alloys, and particularly relates to a gold alloy. The gold alloy comprises 5-10% of Ag, 3-7% of Zn, 2-5% of Cu, 2-4% of Nb, 0.5-1.5% of Ca, 0.5-1.5% of Zr, 2-4.5% of Er, 0.5-1% of Ho, 1-3% of epoxy resin and the balance of gold and inevitable impurities. The invention also provides a synthetic method of the gold alloy. The gold alloy provided by the invention has the advantages of excellent high-temperature property, very long service life, high-temperature resistance, oxidization resistance and creep resistance; gold jewelry made from the gold alloy has the advantages of low price, high hardness and long-lasting color and luster and can be worn for a long time.