How Does The Fruit And Vegetable Freeze Dryer Process Lemon Slices

#Fruit and Vegetable Freeze Dryer# Lemon fruit juice is succulent and crisp, with a strong aroma, rich in vitamins, citric acid, high potassium and low sodium, etc., which are very beneficial to the human body. Traditional consumption includes freshly squeezed juice, dried lemon slices, etc., which cannot meet modern consumption and nutritional preservation. FZG Food Freeze Dryer Integrated System is an integration of pre-treatment washing and cutting, fresh pressing, extraction and other systems, vacuum freeze-drying system, post-packaging system, etc. It has the ability of natural processing and production. At present, the FZG food freeze-drying machine integrated system is used to develop and process lemon freeze-drying, and a variety of lemon freeze-dried products have been developed to provide natural, healthy and safe healthy food for the consumer market.

Today, I will introduce the steps of fruit and vegetable freeze dryer processing lemon slices:

1) Selection of raw materials

Select C-grade lemon fruit with an inner cut surface diameter of 50-60mm;

2) Cleaning

Wash the selected lemons;

3) One freeze drying

The cleaned fruits were placed in the freezer under sealed conditions and freeze-dried at -15°C for 8 hours; then the frozen fruits were transferred from the freezer to the working chamber of Shanghai Tuofen vacuum freeze-drying machine, at a temperature of 1°C/min. The temperature was raised to 55°C and kept for 6 hours, and the vacuum degree was 5Pa;

4) Slicing

Cut the freeze-dried lemon into slices with a thickness of 5mm; the temperature when slicing is -5°C;

5) Soak

The sliced fruit pieces were placed in a chitosan-vitamin complex solution for 3 minutes at 5°C, and the chitosan-vitamin complex solution was composed of chitosan, vitamin C and ethanol in a weight ratio of 1. : a mixed solution of 6:93, the ethanol is an ethanol solution with a volume concentration of 95%,

6) Secondary freeze drying

Put the soaked lemon slices in the freezer and freeze-dry at -20°C for 5 hours under sealed conditions; then transfer the frozen lemon slices from the freezer to the working chamber of the vacuum freeze dryer at a speed of 3°C/min. After the temperature was raised to 45 °C, the temperature was kept for 8 hours, and the vacuum degree was 4Pa;

7) Packaging

Under aseptic conditions, the lemon freeze-dried tablets are packaged with nitrogen filling and food packaging film, and 2-3 freeze-dried tablets are packaged and sealed.