Method for determining content of soluble solid of pumpkin fruits

A solid content and soluble technology, applied in the field of determination of soluble solid content of pumpkin fruit, can solve the problems of poor accuracy and low data

Pending Publication Date: 2021-06-08
SANYA NANFAN SCI TECH INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because water is added in the measurement process of this method, the pumpkin juice is diluted, which makes the measured data lower and the accuracy is poor.

Method used

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  • Method for determining content of soluble solid of pumpkin fruits

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] S1: Take the pumpkin fruit and cut it into small pieces of pumpkin, the specification: the length × width is 1.0 cm × 1.0 cm, and the height is based on the thickness of the pulp.

[0022] S2: Put the small pieces of pumpkin into a refrigerator at a temperature of -16°C and freeze for 3 hours.

[0023] S3: Take out the frozen pumpkin pieces and place them at room temperature until they are completely thawed to obtain softened pumpkin pieces.

[0024] S4: Use a juice extractor to squeeze out the small piece of juice from the completely thawed pumpkin, and at the same time use a refractometer to measure, read and record the measured value.

Embodiment 2

[0026] The freezing temperature of S2 is -16°C, and the freezing time is 5h.

[0027] Other steps are the same as in Embodiment 1.

Embodiment 3

[0029] The freezing temperature of S2 is -16°C, and the freezing time is 7h.

[0030] Other steps are the same as in Embodiment 1.

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PUM

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Abstract

The invention belongs to the field of fruit and vegetable quality detection, and relates to a method for determining the content of soluble solids in pumpkin fruits, which comprises the following steps: cutting pumpkin fruits into small blocks, freezing at low temperature, completely unfreezing to obtain softened small pumpkin blocks, squeezing the completely unfrozen small pumpkin block juice by using a squeezer, and measuring by using a refractometer to obtain contents of the soluble solid of the pumpkin fruits. According to the morphological characteristics of pumpkin pulp, freezing pretreatment is carried out on a pumpkin object to be detected, the cell membrane structure is destroyed, so that cell contents flow out, the refractometer is used for directly measuring the content of soluble solids, the feasibility, convenience and accuracy of a measurement result are ensured, and the method is simple and easy to operate and has high practical value. The method can be used for measuring the soluble solid content of pumpkin fruits.

Description

technical field [0001] The invention belongs to the field of fruit and vegetable quality detection, and relates to a detection method, in particular to a method for measuring the soluble solid content of pumpkin fruit. Background technique [0002] Fruits and vegetables contain soluble substances such as sugar, organic acid, pectin, tannin, etc. The content of soluble solids is an important indicator for judging the quality of fruits and vegetables, fruit maturity and storage effect after picking. The maturity, sugar content and storage period of the fruit provide a theoretical basis, and at the same time provide a guiding direction for agricultural production to improve product quality and increase production and income. [0003] Today, the conventional method for determining the soluble solid content in fruits and vegetables is to take the pulp and squeeze out the juice directly, and then measure it with a refractometer. Pumpkin is an annual herb of Cucurbitaceae (Cucurbi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/41G01N1/28G01N1/42
CPCG01N21/4133G01N1/286G01N1/42G01N2001/2873
Inventor 曹明张雪彬林德佩张雪精
Owner SANYA NANFAN SCI TECH INST
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