Litchi long-distance transport preservation technology

The harvest season of litchi is in midsummer. At this time, the temperature is often above 30°C. Litchi has a thin skin, many fruit juices, and is susceptible to mechanical damage and microbial infestation that causes decay. At the same time, the litchi pericarp is rich in polyphenol oxidase and peroxidase, which is the key enzyme for skin browning. When the peel water loss rate reaches 50% of its own content, browning begins. Therefore, litchi is one of the most difficult to keep fresh fruits. The remote frozen and fresh-keeping technology of Litchi fruit is introduced as follows for reference. First, color protection treatment 1 use lychee color protection agent "GOS-L98" (Chinese Academy of Sciences Institute of Plants), according to its instructions to deal with fresh oysters, below 35 °C can be stored for 7 days, 5 °C conditions can be stored for 20 days, even if the peel Dried, still bright red. 2 Soak fruit for 2 minutes or more with 2% sodium sulfite, 1% citric acid and 2% salt solution. The fruit was soaked with a 31% citric acid and 2% saline solution for 2 minutes. After the above 2 and 3 methods are processed, the fresh preservation method is used for preservation, and the preservation of lychee can be maintained for more than 3 days than the treatment without color protection. Second, preservation measures (A) liquid chemical agent preservation method of its mechanism and requirements is that the drug can dissolve in water after the formation of an invisible transparent film on the litchi surface, not only can effectively seal the stomatal, reduce respiratory intensity, delay the aging of the fruit, Can also be used as a spreading agent to make it evenly distributed throughout the litchi surface, and play a role in antiseptic and sterilizing. Commonly used preservatives are: Acetaminophen produced in France, commonly used as 25% suspension, with high efficiency, broad spectrum, low toxicity, low residue, harmless to users and consumers, etc., can effectively prevent crown rot, black rot Disease, green mold, anthrax. After being diluted 250 times, it is a milky white suspension with good suspension, water dispersibility, adhesiveness, and spreadability. After the fruit is treated, the surface is clean, with no stain, and the appearance of the product is good. Use it to soak in ice water solution (from precooling, below 12°C, and 4°C-6°C better) for 1 minute, scoop up, blow it dry with electric fan, and then use non-toxic, breathable, suitable water performance. The cling film (or common non-toxic polyethylene plastic film) is packaged in a polystyrene foam box with ice cubes (fruit to ice ratio of 3-1:1) and loaded onto a train or car refrigerated cart or Ordinary truck (covered with tarpaulin) for transportation, marketing. Schneider's German production is commonly used as a 45% cream, which has specific effects on the prevention and treatment of various plant diseases caused by Ascomycetes and Deuteromycetes. Use it to dilute to 1000-2000 times ice water solution and soak for half a minute. The rest is the same as the above method. Tektronix produced in the United States, containing thiabendazole 41.8, latex suspension, odorless, tasteless, high stability, can be diluted with ice water solution 300-400 times liquid immersion 1 minute, it also has the effect of preventing fruit browning. Some domestic fruit preservatives, such as Beijing ZB preservative fresh mango preservatives, Sato banana preservatives, can also be used for testing. (2) Solid Preservatives Preservation Method The principle of smoke-smoked sulphur treatment is the sulphur dioxide produced by burning sulphur, which has functions such as sterilization and bleaching. The SO2 release is divided into two phases. The first phase releases a higher concentration of SO2 within 1-2 days after litchi packaging to surface lychee disinfectant. The second phase releases 0.05-0.1 SO2 for up to 2 months. To inhibit pathogenic bacteria during long-term storage or long-distance transportation. The disadvantage is that the bleaching effect of SO2 has a certain influence on color protection. Strong adsorptive activated carbon can be used as a carrier, strong oxidizer sodium chlorate is added, and ferrous sulfate and zinc oxide having fresh-keeping activity are added. The above four kinds of medicines are mixed in a 6:2:1:1 ratio, and then a small amount of water is added to the mixture, and the mixture is dried at 100°C-110°C to form a solid preservative with a diameter of 2-3 mm. And according to the needs of different specifications of the weight of the finished product packaging. It is usually packed in a small, breathable plastic bag (externally sealed with a paper bag, or an ordinary non-toxic plastic bag with a small amount of needles) and then it is placed in a foam box. Stay lit, and store the lychees that hold the bag tightly to prevent ice water from dipping. This solid-state preservative can decompose and eliminate harmful gases during storage, inhibit the occurrence of mold, and thus play a role in preservation. Its dose accounts for 2-3% of litchi. (c) Fresh-keeping bag preservation methods such as the use of polyalkylene resin processing, with a multi-layer structure of plastic film composite heavy bags, it can reflect more than 95% of the light, so that the bag temperature is not significantly increased under direct sunlight , Its excellent moisturizing performance, and can self-adjust the gas composition of the bag to form a low-oxygen and high-carbon dioxide storage fruit environment, can be used in the natural temperature change environment below 60°C. III. Perfecting the integrated preservation method of the cold storage chain circulation supporting technology of Beiyun: namely, color protection → liquid preservation → solid preservation → foam box ice cube → special storage bag outside the box → bamboo basket or wooden bar case outside the bag → wholesale market A series of treatments, such as cold storage or air-conditioning, can achieve planned marketing. If the temperature can maintain 4 °C - 6 °C (relative humidity 75-90%, the same below), can be kept fresh for one month (good fruit rate of 85% or more, the same below); storage temperature 7-8 °C, can be kept fresh for 25 days Cooling temperature 9-12 °C, can be kept fresh for about 3 weeks. Litchi preservation temperature should not be below 4 °C to prevent irreversible chilling damage; large and medium-sized cities wholesale fruit vendors or fruit vendors, should also have refrigerator preservation. It is sold to the north of the Yangtze River and litter-bearing, and it still has a train refrigerated truck (maintaining 4°C-6°C). The transportation effect is good and the benefit is high. Without such wagons, the train's sill and grid wagon are also less affected than the automobile's vibration and the good fruit rate is high. The total freight is low.

Tea Extract supplier Organic Herb Inc's range of products include: Tea Polyphenols, egcg (Epigallocatechin gallate), L-Theanine, Green Tea Extract, Instant tea powder, Oolong Tea Powder, Black tea extract (Theaflavins) ect.

A green tea extract is a herbal derivative from green tea made from the leaves of Camellia sinensis plant .Organic Herb Inc provide tea extract that is obtained from organic fresh source and processed through high standard manufacture method . The tea extract is sometimes used as weight loss dietary supplements and in alternative medicine because it catains antioxidant ingredients – mainly green tea catechins (GTC).It has also been shown that tea extract offer antioxidant, anti-inflammatory, anti-allergic, antibacterial and antiviral properties.Originated in southwestern China ,tea is initially used as a medical drink due to its energizing effect .Nowadays ,scientifically researches have proved the effectiveness of green tea extract as a food additive and dietary supplement component in fields including nutraceuticals, drinks, functional beverages, food production and cosmetics.

Tea Extract Series

Tea Extract,Green Tea Extract,Tea Seeds Extract,Chrysanthemum Flower Extract

Organic Herb Inc. , http://www.organic-extracts.com