摘要:
A biodegradable plastic added at an amount of a hydrophilic property imparting-substance providing wettability such that the contact angle of plastic surface to water is 70.degree. or less whereby the decomposability thereof with Basidiomycetes, the cultured products thereof and/or the processed products thereof is improved. A method for decomposing plastic under the conditions with limitation to nitrogen and/or carbon in decomposing such biodegradable plastic. In accordance with the present invention, the plastic which has conventionally been decomposed with difficulty can be decomposed efficiently.
摘要:
The liquid waste after pulp bleaching can be treated by using a microorganism having lignin degradation activity and having been pre-cultured in a culture medium supplemented with the liquid waste after pulp bleaching and/or lignin related substances, the cultured products thereof and/or the treated products thereof.The scarcely degradable colored ingredients and/or chlorinated phenols contained in the liquid waste after pulp bleaching can be decomposed and removed, whereby the efficient treatment of the liquid waste after pulp bleaching can be achieved.
摘要:
According to this invention, pulps can be produced in high yields while saving energy by previously fiberizing wood chips used as the original material and then treating with a microorganism having a high lignin-degrading activity and a low fiber-degrading activity upon the wood.In addition, new lignin-degrading enzymes produced by a microorganism used in this invention were identified.
摘要:
According to this invention, pulps can be produced in high yields while saving energy by previously fiberizing wood chips used as the original material and then treating with a microorganism having a high lignin-degrading activity and a low fiber-degrading activity upon the wood.In addition, new lignin-degrading enzymes produced by a microorganism used in this invention were identified.
摘要:
Melanin is decomposed and decolored, by using a species of Basidiomycetes having melanin decomposing potency, which can be applied to whitening cosmetics for treating chloasma and freckle, and additionally, to the decoloring of melanin containing (foodstuff) industrial products.
摘要:
A method for measuring a biomass which comprises measuring an electric capacitance across at least one pair of electrodes attached to a bioreactor, and thereby continuously measuring a biomass of organisms (such as microorganism and plant or animal cells), which may or may not be immobilized in the bioreactor, according to the electric capacitance (dielectric permitivity) measured. The present invention permits one to measure on-line the quantities of microorgansisms or plant or animal cells without having to take samples from a bioreactor or culture tank.
摘要:
A liquid starch solution suitable for saccharification into a maltose-containing product is obtained by suspending starch in water, adding to the starch suspension a heat resistant .alpha.-amylase and a buffer, adjusting the resultant mixture to a pH value in the range of from 7.5 to 8.0, and thermally treating the resultant starch milk while repressing possible hydrolysis of starch molecules.
摘要:
A vessel capable of passing a liquid therethrough is packed with a support having at least hydrophilicity and microorganism cells are inoculated to the support, retained and cultivated therein. A reaction substrate is fed to the vessel and brought into contact with the microorganism, whereby the microorganism is allowed to propagate within the support and act upon the reaction substrate to induce decomposition or synthetic reactions thereof.
摘要:
##STR1## wherein R is ##STR2## The present invention relates to the antioxidative glycoside of structural formula (A) above-shown, obtained from the culture of growing cells derived from the plant body of sesame (Sesamun indicum L.), can provide the glycoside in large quantities by utilizing sesame, and also relates to an antioxidant comprising at least one substance of the glycoside of structural formula (A) above-shown as effective ingredient, the antioxidant being harmless and effective particularly for prevention of oxidation of foods, drugs, cosmetics, etc.
摘要:
Longer carbon chain polyprenyl ketone derivatives are prepared by cultivag Nocardia strain FERM-P No. 1609 in the presence of shorter carbon chain polyprenyl ketones.