METHOD OF TESTING THE EFFECT OF ANTIBACTERIAL COMPOUNDS ON BACTERIAL SOFT ROT OF POTATOES, AND RESULTS FOR PREPARATIONS OF DICHLOROPHEN AND SODIUM-HYPOCHLORITE

被引：7

作者：

LUND, BM

WYATT, GM

机构：

[1] ARC Food Research Institute, Norwich, NR4 7 UA, Colney Lane

来源：

POTATO RESEARCH | 1979年 / 22卷 / 03期

关键词：

Erwinia carotovora; pectolytic clostridia;

D O I：

10.1007/BF02357351

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

A product containing dichlorophen as the main active ingredient was bacteriostatic against, strains of Erwinia carotovora and pectolytic clostridia in culture at concentrations equivalent to 25 mg/litre and 30 mg/litre respectively of dichlorophen. An aqueous solution of the product containing 200 mg/litre dichlorophen was rapidly bactericidal to E. carotovora var. atroseptica but a solution containing 2.3 g/litre a.i. failed to kill spores of a pectolytic clostridium. Immersion of tubers in a solution containing 200 mg/litre dichlorophen gave a concentration of about 53 mg/kg in the peel. Formulations applied as dips or sprays at concentrations of up to 2.3 g/litre dichlorophen failed to reduce the incidence of soft rot in tubers stored under <1% O2 in N2 at 100% relative humidity and 20 C for up to 11 days. Both E. carotovora and pectolytic clostridia were isolated from rots occurring after treatment of tubers with 2 g litre dichlorophen. Solutions of sodium hypochlorite (0.6-2 g litre free chlorine, pH 9.4-9.7) reduced the incidence of soft rot in unwounded tubers stored in the above conditions. © 1979 Kluwer Academic Publishers.

引用

页码：191 / 202

页数：12

共 14 条

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