Abstract: The method for producing bioethanol from dates includes manufacturing a suitable substrate for bioethanol from dates and fermenting the date substrate to produce bioethanol. The date substrate may be produced by de-pitting date fruits, heating the flesh with water to produce a mixture, filter pressing the mixture to produce a juice, and concentrated by vacuum drying to produce a date substrate. The date substrate may then be fermented in either a batch or a fed-batch culture. The fermentation may be performed with a thermophilic yeast, such K. marxianus. In an alternative embodiment the date substrate may be a date fruit extract.

Abstract: The method for producing bioethanol from dates includes manufacturing a suitable substrate for bioethanol from dates and fermenting the date substrate to produce bioethanol. The date substrate may be produced by de-pitting date fruits, heating the flesh with water to produce a mixture, filter pressing the mixture to produce a juice, and concentrated by vacuum drying to produce a date substrate. The date substrate may then be fermented in either a batch or a fed-batch culture. The fermentation may be performed with a thermophilic yeast, such K. marxianus. In an alternative embodiment the date substrate may be a date fruit extract.

Abstract: The method for producing bioethanol from dates includes manufacturing a suitable substrate for bioethanol from dates and fermenting the date substrate to produce bioethanol. The date substrate may be produced by de-pitting date fruits, heating the flesh with water to produce a mixture, filter pressing the mixture to produce a juice, and concentrated by vacuum drying to produce a date substrate. The date substrate may then be fermented in either a batch or a fed-batch culture. The fermentation may be performed with a thermophilic yeast, such K. marxianus. In an alternative embodiment the date substrate may be a date fruit extract.

Abstract: The method of producing baker's yeast involves producing yeast from a substrate composed of date syrup (Dips) diluted by molasses in sufficient quantity to lower the concentration of organic acids present in the date syrup that are toxic to yeast to safe levels, preferably a 1:1 mixture (w/w) of date syrup (Dips) and molasses. The substrate is inoculated with viable cells of Saccharomyces cerevisiae yeast and placed in a bioreactor or fermentation vessel. The yeast is produced by a fed-batch process to ensure continuous yeast production and prevent or minimize the production of alcohol by the yeast, additional increments of the substrate being added about hourly for the duration (about 12 hours) of the yeast propagation process. The process produces baker's yeast comparable in quality to yeast produced from a pure molasses substrate for such purposes as making bread, and in sufficient quantity to be practical for industrial production.

Abstract: The method of producing baker's yeast involves producing yeast from a substrate composed of date syrup (Dips) diluted by molasses in sufficient quantity to lower the concentration of organic acids present in the date syrup that are toxic to yeast to safe levels, preferably a 1:1 mixture (w/w) of date syrup (Dips) and molasses. The substrate is inoculated with viable cells of Saccharomyces cerevisiae yeast and placed in a bioreactor or fermentation vessel. The yeast is produced by a fed-batch process to ensure continuous yeast production and prevent or minimize the production of alcohol by the yeast, additional increments of the substrate being added about hourly for the duration (about 12 hours) of the yeast propagation process. The process produces baker's yeast comparable in quality to yeast produced from a pure molasses substrate for such purposes as making bread, and in sufficient quantity to be practical for industrial production.