تأثير المعاملة الحرارية على فاعلية المضادات البكتيرية و حموضة بعض الأعسال اليمنية

الملخص EN

Result showed that non heat treatment Sidr Dwani, Sidr Wessabi and Soomur honeys acidity were less than Dwani pasture, Flower, Sallam and Commercial honeys, however, honeys pH after heat treatment from 60 – 100 oC were gradual rise except commercial honey which his pH slight increase at 90 and 100 oC.

Data indicated that Sidr wessabi honey non heat treatment gave the best effect against Salmonella sp.

than other honeys, however, Sallam, Sidr Wessabi, Sidr Dwani, Flowers and Dwani pasture honeys had not any antibacterial activity against the same bacteria after heat treatment.

Non heat treatment Soomur honey exhibited good effect against Escherichia coli followed by Sidr Wessabi and Dwani pasture, however, all honeys were illustrated effects against E.

coli after heat treatment with different separate, the best honey for good antibacterial activity was Sidr Wessabi after treatment at 60 and 70 Co, but had gradual decrease activity, wherever to rise temperature, while, other honeys activity were the least against E.

coli after heat treatment.

Data also indicated that non heat treatment Dwani pasture honey gave the best effect against Staphylococcus aureus followed by Sidr Wessabi, Flowers and Sidr dwani.

Heat treatment results for Sallam honey no exhibit any antibacterial against Staphylococcus aureus, while, Dwani pasture and Flowers demonstrate good activity against it after heat treatment at 60 and 80 Co, honeys remnant exhibited accepted effects after heat treatment, example Sidr Wessabi and Sidr Dwani.

Non heat treatment Soomur honey gave good effect against Pseudomonas aeruginosa and disappear this effect after heat treatment.

The second honey which appear good effect against its was Dwani pasture, but exhibited decrease activity after heat treatment, non heat treatment remnant honeys appeared decrease effects against Pseudomonas aeruginosa.

Non heat treatment and treatment commercial honey was appeared good effect against Proteus sp.

compared with other honeys, followed by Dwani pasture, Flower and Soomur honeys which non heat treatment, with decrease effects after heat treatment and had not any effect at 100 Co treatment.

However, honeys remnant were exhibited decrease effects against Proteus sp.

bacteria and had not any effects after heat treatment.