Processing method for red date concentrated juice

Abstract

The invention discloses a processing method of red date concentrated juice. The processing method includes the steps of firstly, selecting material; secondly, performing far infrared aroma extraction; thirdly, grinding; fourthly, performing solid-liquid extraction; fifthly, performing aroma extraction; sixthly, settling; seventhly, performing reverse osmosis concentration; eighthly, performing vacuum concentration; ninthly, backfilling aroma; and tenthly, sterilizing and filing. By the red date concentrated juice prepared by the processing method, natural strong aroma of red date can be stored fully, essence need not be additionally added to the concentrated juice in drink application, bitter taste brought by date peel into the concentrated juice can be eliminated, and the concentrated juice is sweet and mellow in taste.

Description

technical field

[0001] The invention relates to a processing method of red date concentrated juice, in particular to a processing method of red date concentrated juice which maintains the natural rich aroma of red dates and has a sweet and mellow taste. Background technique

[0002] Jujube, also known as jujube. It has been listed as one of the "five fruits" (peach, plum, plum, apricot, jujube) since ancient times and has a long history. Jujube is native to my country and belongs to the fruit of Rhamnaceae. It has been cultivated in my country for more than 3,000 years. Jujube is rich in nutrients. In addition to sugar, protein, organic acid, vitamins, and trace elements, it also contains medicinal ingredients such as flavonoids and saponins, so it has good nutritional and medical value.

[0003] In recent years, with the continuous improvement of food processing level, some new jujube products have been gradually developed, such as turbid jujube juice, but the jujube juic...

Examples

Embodiment 1

[0033] A kind of processing method of jujube concentrated juice, carries out according to the following steps:

[0034] 1. Material selection: Select 100kg of Cangzhou Jinsizi jujube, and remove the fruit with diseases and insect pests and mildewed fruit.

[0035] 2. Far-infrared aromatherapy: Dry the above-mentioned red dates evenly in a chain plate dryer at a drying temperature of 85-105 °C and a hot air temperature of 85-95 °C for 150 min; the dried red dates are dried by The material conveyor is sent into the far-infrared drying box at a uniform speed, and is dried through far-infrared rays. The inner and outer parts of the material can be heated at the same time, which has a significant effect on improving the aroma during the drying process. The infrared radiation wavelength of the far-infrared radiation heating lamp is 2.3∽14μm , the temperature is 85-95°C, and the time is 60 min. After the far-infrared ray is transmitted to enhance the fragrance, it is cooled by cold ...

Embodiment 2

[0054] A kind of processing method of jujube concentrated juice, carries out according to the following steps:

[0055] 1. Material selection: Select 200kg of Cangzhou Jinsixiaozao, and remove the fruit with diseases and insect pests and moldy fruit.

[0056] 2. Far-infrared aromatherapy: Dry the above-mentioned red dates evenly in a chain plate dryer at a drying temperature of 200-240°C, a hot air temperature of 200-220°C, and a time of 8-12 minutes; Jujubes are fed into the far-infrared drying box at a uniform speed by the material conveyor, and are dried through far-infrared rays. The inner and outer parts of the material can be heated at the same time, which has a significant effect on improving the aroma during the drying process. The infrared radiation wavelength of the far-infrared radiation heating lamp is 2.3 ∽14μm, the temperature is 150-180 ℃, and the time is 15-18 min. After the far-infrared ray is transmitted to enhance the fragrance, it is cooled by cold wind, a...

technical field

[0001] The invention relates to a processing method of red date concentrated juice, in particular to a processing method of red date concentrated juice which maintains the natural rich aroma of red dates and has a sweet and mellow taste. Background technique

[0002] Jujube, also known as jujube. It has been listed as one of the "five fruits" (peach, plum, plum, apricot, jujube) since ancient times and has a long history. Jujube is native to my country and belongs to the fruit of Rhamnaceae. It has been cultivated in my country for more than 3,000 years. Jujube is rich in nutrients. In addition to sugar, protein, organic acid, vitamins, and trace elements, it also contains medicinal ingredients such as flavonoids and saponins, so it has good nutritional and medical value.

[0003] In recent years, with the continuous improvement of food processing level, some new jujube products have been gradually developed, such as turbid jujube juice, but the jujube juic...

Examples

Embodiment 1

[0033] A kind of processing method of jujube concentrated juice, carries out according to the following steps:

[0034] 1. Material selection: Select 100kg of Cangzhou Jinsizi jujube, and remove the fruit with diseases and insect pests and mildewed fruit.

[0035] 2. Far-infrared aromatherapy: Dry the above-mentioned red dates evenly in a chain plate dryer at a drying temperature of 85-105 °C and a hot air temperature of 85-95 °C for 150 min; the dried red dates are dried by The material conveyor is sent into the far-infrared drying box at a uniform speed, and is dried through far-infrared rays. The inner and outer parts of the material can be heated at the same time, which has a significant effect on improving the aroma during the drying process. The infrared radiation wavelength of the far-infrared radiation heating lamp is 2.3∽14μm , the temperature is 85-95°C, and the time is 60 min. After the far-infrared ray is transmitted to enhance the fragrance, it is cooled by cold ...

Embodiment 2

[0054] A kind of processing method of jujube concentrated juice, carries out according to the following steps:

[0055] 1. Material selection: Select 200kg of Cangzhou Jinsixiaozao, and remove the fruit with diseases and insect pests and moldy fruit.

[0056] 2. Far-infrared aromatherapy: Dry the above-mentioned red dates evenly in a chain plate dryer at a drying temperature of 200-240°C, a hot air temperature of 200-220°C, and a time of 8-12 minutes; Jujubes are fed into the far-infrared drying box at a uniform speed by the material conveyor, and are dried through far-infrared rays. The inner and outer parts of the material can be heated at the same time, which has a significant effect on improving the aroma during the drying process. The infrared radiation wavelength of the far-infrared radiation heating lamp is 2.3 ∽14μm, the temperature is 150-180 ℃, and the time is 15-18 min. After the far-infrared ray is transmitted to enhance the fragrance, it is cooled by cold wind, a...