ENCAPSULATION OF SUBSTANCE WITHIN MICROBE AND EXTENDING LIPID CONTENT OF MICROBE

摘要

A method of extending the lipid content of a grown microbe comprises treating the microbe with an organic lipid-extending substance so that the substance is absorbed by the lipid and is retained passively in the microbe. An encapsulated material may be produced by treating a grown microbe with the lipid-extending substance and a material which is soluble or micro-dispersible in the substance. Suitable substances may be selected by tests stated in the specification. Examples of substances are some liquid alcohols, esters, aromatic hydrocarbons and hydrogenated aromatic hydrocarbons. The method is particularly suitable for producing encapsulated dyes for use in carbonless copy paper.