示意圖，僅供參考，商品以實物為準Aleksandrow Agar
亞歷山卓瓊脂培養基
別名與縮寫：Aleksandrov Agar · Aleksandrov Medium · Potassium Solubilizing Bacteria Agar · KSB Agar · 溶鉀菌培養基 · 亞歷山卓洋菜
For the isolation and detection of potassium-solubilizing bacteria from soil and rhizosphere samples.
- 類別
- 粉末培養基
- 每公升溶解量
- 29.61 g
- 包裝規格
- 500 g · 5 kg · 25 kg
資料更新：2026-11-06
產品說明
Aleksandrow Agar 是瓊脂（固態）培養基。以不溶性鉀礦物為鉀源，用於溶鉀菌的篩選，以溶解圈判讀。上鼎以食品級原料製造，生產環境通過 ISO 22000 認證，每批附 COA。
原理
Potassium is one of the most abundant elements in soil, but the majority is locked within insoluble minerals such as feldspar and mica, leaving little in a plant-available form. Certain soil bacteria are able to release potassium from these minerals and play an important role in soil fertility and plant growth.¹ʼ² In Aleksandrow Agar, potassium aluminium silicate serves as the sole, insoluble source of potassium, which most organisms cannot utilize directly. Dextrose provides the carbon and energy source, magnesium sulphate and ferric chloride supply essential ions, tricalcium phosphate provides phosphorus, and calcium carbonate contributes to the buffering of the medium. Potassium-solubilizing bacteria secrete organic acids such as citric, oxalic, tartaric, and gluconic acid, which dissolve the insoluble potassium minerals. As a result, these organisms produce a clear halo zone around their colonies on the otherwise hazy (opaque) agar, providing a visual indication of potassium solubilization.²
配製與使用
Suspend 29.6 g of the 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. Cool to 45–50°C. Mix well to evenly suspend the insoluble minerals 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 |
|---|---|---|
| Bacillus mucilaginosus | good-luxuriant | |
| Bacillus circulans | 4513 | good-luxuriant |
| Escherichia coli | 25922 | good |
產品特色
- 依標準配方製造，每公升溶解量 29.61 g
- 出廠前以標準菌株驗證培養效能（Bacillus mucilaginosus、Bacillus circulans、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 29.61 g；配製與滅菌條件依規格書。
02適用哪些菌種？
Bacillus mucilaginosus、Bacillus circulans、Escherichia coli。詳見培養性能表與規格書。
03這個產品要怎麼配製？
Suspend 29.6 g of the 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. Cool to 45–50°C. Mix well to evenly suspend the insoluble minerals 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。
適用的應用
參考文獻
- 1. Aleksandrov V. G., 1958. Organo-mineral fertilizers and silicate bacteria, Doklady Akademii Nauk.
- 2. Sheng X. F. and He L. Y., 2006. Solubilization of potassium-bearing minerals by a wild-type strain of Bacillus edaphicus. Canadian Journal of Microbiology, 52:66–72.