品牌: biolzy 公司: 上海联硕生物科技有限公司

货号： CM0139B 数量： 现货 英文名： Potato Dextrose Agar

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英国OXOID 高质量培养基

----Oxoid于1924年成立，现属于知名的Thermo Fisher Scientific集团一员，目前为领先全球的微生物培养基制造商与诊断试剂销售商。公司总部位于英国贝星斯托克(Basingstoke)，产品销售遍及欧盟各国、美洲与澳洲，另外也委托世界各地专业的微生物产品代理商经营国际Oxoid事业。Oxoid产品范围阔及与疾病、微生物诊断相关的临床检验科学、基础学术研究与工业生产领域。Oxoid主要产品线包括有:1. 培养基 (Culture Media & Supplements)2. 产色素培养基 (Chromogenic media)3. 厌氧培养系统 (Atmosphere Generation)4. 微生物药敏分析 (Antimicrobial Susceptibility Testing)5. 诊断试剂 (Diagnostic reagents)

马铃薯葡萄糖琼脂|Potato Dextrose Agar用途:用于分离皮肤真菌、其它霉菌和酵母的酸性培养基。也可用与EP/USP/JP 协同的微生物限度检查法中黑曲霉的准备500g 可以配制12.8 升培养基DirectionsSuspend 39g in 1 litre of water (purified as requested). Bring to the boil to dissolve completely. Sterilise by autoclaving at 121°C for 15 minutes. Mix well before pouring.In order to suppress bacterial growth it is sometimes desirable to acidify the medium to pH 3.5. This can be done by adding 1ml of Lactic Acid 10% SR0021 to each 100ml of sterilised medium at 50°C. The medium must not be heated after the addition of the acid; this would result in hydrolysis of the agar and destroy its gelling properties.DescriptionFoodA suitable medium for the isolation and count of yeasts and moulds in dairy products1 or those occurring on the surface of fresh meats, cured meats and sausage products and other foods 2. This medium is suitable for the detection and enumeration of heat resistant moulds in thermally processed fruits and fruit products 2.Work carried out in cooperation with CSIRO Melbourne had shown that the minerals present in agar could influence the pigment formation of certain fungi. Where pigment production is a critical part of the identification of the fungus it is clearly important to stabilise this characteristic. The agar used in Potato Dextrose Agar is carefully screened to ensure correct pigment production by fungi such as Fusaria spp.PharmaA suitable medium for the preparation of Aspergillus niger. Potato Dextrose Agar conforms to the parameters of the harmonised Microbial Limit Tests from EP/USP/JP (enumeration test)3,4,5,.Additional information about this and other products in our harmonised range can be obtained by downloading our Harmonised Culture Media Portfolio.TechniqueFoodAfter sterilising the reconstituted medium adjust the reaction to pH 3.5 by adding 1ml of Lactic Acid 10% (SR0021) to each 100ml of medium at 50°C. Do not reheat after acidification.Prepare dilute emulsions or suspensions of the product to be tested, make pour-plates in the usual manner, and incubate for 5 days at 21°C. Count the number of yeast and mould colonies.If a non-selective medium is required, it is suggested that Potato Dextrose Agar may be used without added acid or, alternatively, one may use a general purpose mycological medium such as Malt Extract Agar (CM0059).PharmaGrow Aspergillus niger on Potato Dextrose Agar (CM0139) at 20-25°C for 5-7 days or until good sporulation is achieved.Storage conditions and Shelf lifeStore the dehydrated medium at 10-30°C and use before the expiry date on the label.Store the prepared medium at 2-8°C.AppearanceDehydrated medium: Off-white, free-flowing powderPrepared medium: Light straw coloured gel

保存条件：2-8°C

温馨提示：不可用于临床治疗。