Biological control method for enhancing postharvest storability of strawberries

A storage property and strawberry technology is applied in the field of biological control for improving the post-harvest storage property of strawberries, which can solve problems such as narrow antibacterial spectrum, and achieve the effects of prolonging fresh-keeping period, improving hardness and inhibiting growth.

Inactive Publication Date: 2013-11-20
NANJING AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because a single antagonistic yeast has a narrow antibacterial spectrum, but there are many pathogenic bacteria in strawberry fruit, it is impossible for one antagonistic bacteria to effectively control all pathogenic bacteria on the fruit.

Method used

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  • Biological control method for enhancing postharvest storability of strawberries
  • Biological control method for enhancing postharvest storability of strawberries
  • Biological control method for enhancing postharvest storability of strawberries

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] specific implementation plan

[0035] 1. Experimental materials

[0036] Strawberry fruit (Fragaria ananassa Duch), trade name " beauty ".

[0037] Antagonistic yeasts: Hansenula vine (H.uvarum), strain preservation number CGMCC2.3970; Pichia guilliermondii (P. guilliermondii), strain preservation number CGMCC2.3943. Purchased from the Culture Collection Center.

[0038] 2. Experimental equipment

[0039] Cold storage (Nanjing Jiliang Refrigeration Equipment Co., Ltd.); ultraviolet-visible spectrophotometer UV-2802PCS (Beijing Labtech Co., Ltd.); portable colorimeter (Shanghai Hanpu Optoelectronics Technology Co., Ltd.); hand-held sugar meter WYT-4 ( Quanzhou Optical Instrument Factory); TA.XT2i texture analyzer (Stable Micro Systems, UK); TGL20M desktop high-speed refrigerated centrifuge (Xiangyi Centrifuge Instrument Co., Ltd.); optical microscope Nikon102 (JapanNikon Co., Ltd.); Warm shaking incubator (Taicang Experimental Equipment Factory)

[0040] 3. Experime...

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PUM

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Abstract

The invention discloses a biological control method for enhancing the postharvest storability of strawberries. The biological control method comprises the following steps of: respectively preparing 105-108 CFU/mL hanseniaspora uvarum suspension and 105-108 CFU/mL pichia guilliermondii suspension; compounding 105-108 CFU/mL compound antagonistic yeast suspension according to isoconcentration and iso-volume; respectively carrying out spraying treatment on strawberry fruits 1-7 days before the strawberry fruits are picked by using the compound antagonistic yeast suspension; and storing after picking under the conditions of 2 DEG C and 90%-95% of RH (Relative Humidity), or selling at normal temperature. The biological control method disclosed by the invention achieves no toxic or side effect on human bodies, prolongs the storage period and shelf life of the strawberries, carries out the field spraying treatment on the strawberries by utilizing compound antagonistic yeast and can keep the better quality of the strawberries in the storage period, outstandingly enhance the commodity rate of the strawberries and the activity of a relative disease-resistant defense enzyme and reduce the rotting rate.

Description

technical field [0001] The invention belongs to the technical field of storage and preservation of agricultural products, and relates to a biological control method for improving post-harvest storage of strawberries. Background technique [0002] Strawberry fruit is soft and juicy, bright in color and has high nutritional value. It is deeply loved by consumers. It has a large planting area, high output and high economic value in our province. Due to its high water content and delicate tissue, it is extremely vulnerable to mechanical damage and microbial infection during picking and transportation, and it will rot and deteriorate. Wherein gray mold (Botrytis cinerea), soft rot (Rhizopus stolonifer), anthracnose (Colletotrichum acutatum), blight (Phytophthora cactorum), powdery mildew (Oidium sp.) are the main diseases of strawberry fruit rot and deterioration. At present, the most effective measures to control rot are low-temperature storage combined with chemical preservati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/155A01G13/00
Inventor 肖红梅秦晓杰高梦姜梅屠康王晓霞杨蓉张艳芬
Owner NANJING AGRICULTURAL UNIVERSITY
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