Abstract:
The present invention relates to an antibacterial composition based on a combination of fatty acid ester of fatty acid and hydroxy carboxylic acid with an antibacterial agent selected from polylysine, protamine, their salts and mixtures hereof. The hydroxy carboxySic acid may be present as acid in its free form, in its salt form and/or in its ester form. The present invention further is directed to the use of said composition as antibacterial agent against gram-negative bacteria in various products, applications and methods. Furthermore, the present invention is related to products comprising said antibacterial agent.
Abstract:
This invention relates to the production of lactic acid and/or lactate from pentose-containing substrate, particularly from xylose-containing substrate Currently, lactic acid is commercially produced from glucose, starch, liquefied starch or sucrose. At present, these substrates are the most important contributor to the manufacturing cost price of lactic acid. Lignocellulosic biomass offers a cost attractive alternative as a substrate for the biological production of lactic acid because it is readily available, has no competing food value, and is less expensive than either starch or sucrose. We have found that moderately thermophilic Bacillus species are able to ferment pentoses, more specifically xylose to enantiomerically pure lactic acid and/or lactate. Said conversion of pentoses leads to virtually only C3 compounds, i.e. said conversion runs via a homofermentive pathway, which C3 compounds can be recovered as lactic acid and/or lactate.
Abstract:
This invention relates to the production of lactic acid and/or lactate from pentose-containing substrate, particularly from xylose-containing substrate Currently, lactic acid is commercially produced from glucose, starch, liquefied starch or sucrose. At present, these substrates are the most important contributor to the manufacturing cost price of lactic acid. Lignocellulosic biomass offers a cost attractive alternative as a substrate for the biological production of lactic acid because it is readily available, has no competing food value, and is less expensive than either starch or sucrose. We have found that moderately thermophilic Bacillus species are able to ferment pentoses, more specifically xylose to enantiomerically pure lactic acid and/or lactate. Said conversion of pentoses leads to virtually only C3 compounds, i.e. said conversion runs via a homofermentive pathway, which C3 compounds can be recovered as lactic acid and/or lactate.
Abstract:
The present invention pertains to a method for the production of lactic acid or a salt thereof wherein starch is subjected to a process of simultaneous saccharification and fermentation, the method comprising saccharifying starch in a medium comprising at least a glucoamylase and simultaneously fermenting the starch using a microorganism, and optionally isolating lactic acid from the medium, characterized in that a moderately thermophilic lactic acid-producing microorganism is used. The invention further relates to a method of performing said process in the presence of a moderately thermophilic lactic acid producing microorganism, which has been adapted to have its maximum performance at the working pH.
Abstract:
The present invention relates to a method for the prevention and/or reduction of the presence, growth and/or activity of gram-negative bacteria comprising application of a composition comprising glycerol-based fatty acid esters and polylysine and/or salts of polylysine, wherein said glycerol-based fatty acid ester is used as antibacterial agent. The present invention further relates to the use of said composition as antibacterial agent in various products and applications ranging from technical products and personal-care products to food and drink products for animals and human consumption.
Abstract:
The present invention is directed to a method for preserving acidic beverages having a pH of or below 4.8 against fungi, yeasts and bacteria. Said preservation method comprises the application of a composition based on polylysine and/or a salt hereof in combination with a second preservative agent selected from glyceride and/or fatty acid ester of hydroxycarboxylic acid in its acidic, salt or ester form.