The invention relates to methods for converting algal biomass into a gas or into biocrude comprising (a) gasification or hydrothermal liquefaction of an algal biomass in at least one first reactor, (b) separation of the gas or biocrude produced thereby from the aqueous effluents and the CO.sub.2 produced, at the outlet of the first reactor, (c) recovery of the aqueous effluents, and (d) oxidation of the aqueous effluents in at least one second reactor. Continuous processes for culture of algal biomass and conversion of the algal biomass cultivated into a gas or into a biocrude are also disclosed.

A method for preparing a fermented drink is described. The method comprises the initiation of fermentation by inoculating the fermentable drink with fermentative bacteria in the form of biofilm.

Antimicrobial compositions comprising one or more compound components generally recognized as safe for human consumption, and related methods of use, such compositions and methods as can be employed in a wide range of agricultural, industrial, building, pharmaceutical and/or personal care products and applications.

Antimicrobial compositions comprising one or more compound components generally recognized as safe for human consumption, and related methods of use, such compositions and methods as can be employed in a wide range of agricultural, industrial, building, pharmaceutical and/or personal care products and applications.

The disclosure relates to an antimicrobial composition that includes a plurality of esters of C.sub.2-C.sub.5 acids; a plurality of C.sub.2-C.sub.5 alcohols; at least one C.sub.2-C.sub.5 acid; and at least one C.sub.2-C.sub.5 aldehyde. The antimicrobial composition is absent naphthalene and azulene derivative compounds. The antimicrobial composition can be incorporated into a variety of carriers, and the antimicrobial composition can be used in methods of affecting antimicrobial activity of various microbes on various substrates.

The disclosure relates to an antimicrobial composition that includes a plurality of esters of C.sub.2-C.sub.5 acids; a plurality of C.sub.2-C.sub.5 alcohols; at least one C.sub.2-C.sub.5 acid; and at least one C.sub.2-C.sub.5 aldehyde. The antimicrobial composition is absent naphthalene and azulene derivative compounds. The antimicrobial composition can be incorporated into a variety of carriers, and the antimicrobial composition can be used in methods of affecting antimicrobial activity of various microbes on various substrates.

The present invention relates to a process for preparing a compound having the formula (I), said process comprising the following steps: a) the addition of an oxygen source into a solution of a compound of formula (II), in a water-miscible solvent, b) the addition of a laccase in the solution obtained after step a); and c) the possible recovering of the compound of formula (I) thus obtained.

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The present invention relates to a process for preparing a compound having the formula (I), said process comprising the following steps: a) the addition of an oxygen source into a solution of a compound of formula (II), in a water-miscible solvent, b) the addition of a laccase in the solution obtained after step a); and c) the possible recovering of the compound of formula (I) thus obtained.

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Methods and processes for producing aerobic digestion products, such as organic acids, from a low-rank coal substrate are provided. Also provided are multistage bioreactor systems for carrying out the described methods and processes. In another aspect, product compositions comprising organic acids produced by the described methods and processes are provided, as well as methods for their use, including for the improvement of soil quality and/or plant growth.

Methods of and system for growing and maintaining an optimized/ideal active yeast solution in the yeast tank and fermenter tank during the fermentation filling cycle are provided. A new yeast stage tank is used between the yeast tank and the fermenter tank allowing yeast to rapidly produce a huge amount of active young yeast cells for a fermenter during the filling period. A measurable and useful controlling factor, % DT/% Yeast by weight ratio (or “food” to yeast ratio), is used (e.g., % DT=glucose), which offers information on the health status of the yeast. The controlling factor is used to control the status of the yeast throughout the entire process.