The process which comprises causing cells or a culture of a microorganism having the activity to introduce hydroxy into the [n-5]-position (n is an even number of 10 or more) and hydrogen into the [n-6)-position of a straight-chain fatty acid having n carbon atoms wherein at least the [n-6]-position is a double bond to make the [n-6]-position a single bond or a treated matter thereof to act on a straight-chain fatty acid having n carbon atoms wherein at least the [n-6]-position is a double bond or a composition containing the fatty acid to form an [n-5]-hydroxy fatty acid wherein the [n-6]-position is a single bond, causing cells or a culture of a microorganism having the activity to β-oxidize an [n-5]-hydroxy fatty acid wherein the [n-6]-position is a single bond or a treated matter thereof to act on the formed [n-5]-hydroxy fatty acid, and recovering the formed δ-lactones.
本发明的工艺包括使具有活性的细胞或微
生物培养物将羟基引入具有 n 个碳原子的直链
脂肪酸的[n-5]位(n 为 10 个或更多的偶数),并将氢引入具有 n 个碳原子的直链
脂肪酸的[n-6]位,其中至少[n-6]位是双键,以使[n-6]位成为单键或其处理物作用于具有 n 个碳原子的直链
脂肪酸,其中至少[n-6]位是双键。位为双键,使[n-6]-位成为单键或其处理物作用于具有 n 个碳原子的直链
脂肪酸(其中至少[n-6]-位为双键)或含有该
脂肪酸的组合物,以形成[n-5]-羟基
脂肪酸(其中[n-6]-位为单键)、使具有β-氧化[n-5]-羟基
脂肪酸(其中[n-6]-位为单键)活性的细胞或微
生物培养物或其处理物作用于形成的[n-5]-羟基
脂肪酸,并回收形成的δ-内酯。