示意圖，僅供參考，商品以實物為準Wort Agar
麥芽汁瓊脂培養基
別名與縮寫：Malt Wort Agar · Brewer's Wort Agar · Wort Agar (Parfitt) · 麥芽汁洋菜 · 啤酒酵母培養基
For the cultivation and enumeration of yeasts and moulds, particularly in brewing, dairy, and other fermentation industries.
- 類別
- 粉末培養基
- 每公升溶解量
- 50.63 g
- 包裝規格
- 500 g · 5 kg · 25 kg
資料更新：2026-11-06
產品說明
原理
Wort Agar reproduces the carbohydrate composition of brewer's wort and was applied by Parfitt to the yeast and mould count of dairy products.¹ Malt extract, maltose, and dextrin provide a mixture of carbohydrates resembling those of wort, together with vitamins and growth factors, and glycerol serves as an additional carbon source. Peptone and ammonium chloride supply nitrogen, and dipotassium hydrogen phosphate buffers the medium. The acidic reaction of the medium favours yeasts and moulds while restricting the growth of many bacteria. Where bacterial contamination is heavy, the medium may be further acidified with lactic acid; because acid hydrolyses the agar, the acidified medium must not be reheated. The medium is widely used for the cultivation and maintenance of brewing and baking yeasts and for monitoring fermentation processes.²
配製與使用
Suspend 50.63 g of powder in 1 L of purified water. Heat with continuous stirring and bring to the boil for 1 minute. Sterilize by autoclaving at 121°C for 15 minutes. Avoid overheating. Cool to 45-50°C. Where greater selectivity is required, acidify the cooled medium with sterile lactic acid; do not reheat the medium after acidification. Mix well and pour into sterile Petri plates. Test the finished medium for performance using stable, standard control cultures.
培養性能測試
| 測試菌株 | ATCC | 生長情形 |
|---|---|---|
| Saccharomyces cerevisiae | 9763 | good-luxuriant |
| Candida albicans | 10231 | good-luxuriant |
| Aspergillus brasiliensis | 16404 | good-luxuriant |
| Escherichia coli | 25922 | inhibited-partial |
產品特色
- 依標準配方製造，每公升溶解量 50.63 g
- 出廠前以標準菌株驗證培養效能（Saccharomyces cerevisiae、Candida albicans、Aspergillus brasiliensis、Escherichia coli）
- 500 g / 5 kg / 25 kg 三種以上包裝，研究室到工業規模都適用
- 可提供 COA、規格書與技術資料表，支援樣品申請
- 台灣製造，供貨穩定
常見問題
01每公升要加多少克粉末？
每公升去離子水加 50.63 g；配製與滅菌條件依規格書。
02適用哪些菌種？
酵母菌、黴菌、啤酒酵母、Saccharomyces cerevisiae、Candida albicans、Aspergillus brasiliensis、Escherichia coli。詳見培養性能表與規格書。
03這個產品要怎麼配製？
Suspend 50.63 g of powder in 1 L of purified water. Heat with continuous stirring and bring to the boil for 1 minute. Sterilize by autoclaving at 121°C for 15 minutes. Avoid overheating. Cool to 45-50°C. Where greater selectivity is required, acidify the cooled medium with sterile lactic acid; do not reheat the medium after acidification. Mix well and pour into sterile Petri plates. Test the finished medium for performance using stable, standard control cultures.
04大量採購如何詢價？可以提供 COA 嗎？
可以。本產品提供 500 g、5 kg、25 kg 等包裝規格，請於詢價時說明應用場景與用量，一個工作天內回覆，並可提供 COA、規格書與技術資料表。
05台灣有現貨嗎？交期多久？
本產品在新北市汐止的自有工廠生產、台灣出貨，不需進口與清關。交期依庫存與包裝規格而定，詢價時告知品項與用量，我們會一併回覆現貨狀況與交期；急件請在詢價單註明。
06可以開立統一發票嗎？學校與研究機構可以請購嗎？
可以。我們開立台灣統一發票（含營業稅），學校、研究機構與公家單位可依請購流程先索取報價單再下單；小包裝與樣品申請都接受。
07有中文版的 SDS 與規格書嗎？
有。規格書（TDS）與 SDS 以英文版為標準文件，登入後可在產品頁下載；中文版 SDS 依需求提供，請在詢價單或聯絡表單註明品項與用途，我們會隨報價寄出。每批出貨附 COA。
參考文獻
- 1. Parfitt E. H., 1933. The influence of media upon the yeast and mold count of butter. J. Dairy Sci., 16:141-147.
- 2. Atlas R. M., 2010. Handbook of Microbiological Media, 4th Ed., CRC Press, Boca Raton.