Abstract: A process for stabilizing wine is characterized by:(a) copolymerizing formaldehyde and tannic acid attached to an insoluble carrier to form an immobilized tannic acid composite(b) contacting a wine having components which cause haze formation upon heating with the immobilized tannic acid for a period sufficient to remove the desired amount of haze components; and(c) separating the treated wine from the immobilized tannic acid.

Abstract: A flavor-enhancing fat composition containing salt, lecithin and a hydrophilic fumed silica. The salt provides flavor enhancement and in combination with the lecithin provides a synergistic improvement in the anti-stick properties of the fat composition. Inclusion of the hydrophilic silica significantly decreases the settling rate of certain particle sizes of salt in the presence of lecithin when the fat is heated and liquefied. The salt remains sufficiently suspended for commercially acceptable periods of time.

Abstract: A composition comprising water, food compatible acid and porous rhyolite carrier, and a method of treating used fryer cooking oil are disclosed.

Abstract: Solid particulate lysine-containing compositions which do not agglomerate in the presence of atmospheric moisture are obtained by mixing a concentrated lysine fermentation broth with an inorganic additive selected from (i) lime in conjunction with carbon dioxide, (ii) magnesium carbonate, or (iii) a mixture of (i) and (ii), and forming solid particles of the resulting mixture. The compositions obtained are suitable for addition to animal feed.

Abstract: The process disclosed herein decaffeinates an aqueous caffeine solution by contacting it with a solid caffeine adsorbent which is made more selective to caffeine by a thin layer of a water-immiscible, caffeine-specific solvent. The caffeine is selectively extracted from the aqueous solution, leaving the solubles necessary for a good tasting beverage, by the solid adsorbent. Because the solvent is selective, the coated adsorbent likewise shows selectivity.

Abstract: Process for production of anionically charged filter media sheet including pretreatment of filter elements with cationic charge modifier, preferably employing inorganic colloidal silica charge modifiers. The resulting filters are used for the removal of haze or haze formers from beverages.

Abstract: A beverage stabilization process in which unstable beverages are contacted in a haze-free condition and at ambient temperature with positive-charge modified particulates, especially in the form of filter sheets, to initiate haze formation and the thus-formed haze is thereafter removed from the beverage at ambient temperature thereby resulting in the stabilization of the beverage.

Abstract: Pink grapefruit juice or concentrate is decolorized by vacuum filtration through a bed of coarse diatomaceous earth particles at a pressure differential from 10 to 25 inches of mercury and at a flow rate from 0.1 to 0.5 gal/min/ft.sq. to form a product suitable for beverage use or for blending with white grapefruit juice for beverage use.

Abstract: This invention relates to an improved method for removing fatty acids from shortening ingredients such as is used in the preparation of foods by the deep-frying method. More particularly, this invention relates to a new and improved filtration powder used in the extraction of fatty acids from shortening used in a variety of cooking processes such as deep frying, and which requires a singular pass of shortening, containing the powder through a filter cloth in order to extract the fatty acid from the shortening. The filtration material constitutes a powder-like glassy rhyolite, specifically pumicite, contained in a cellulose filter paper or the like and through which the cooking shortening circulates or through which the cooking shortening may be circulated for purposes of removing the saturated fatty acids.

Abstract: Dried, free-flowing powdered foodstuffs are produced from high fat containing foods by adding thereto a grinding agent comprising a food-grade film-forming material which has been spray-dried from solution in the presence of a latent gas and which is characterized by a bulk density within the range of 3 to 25 pounds per cubic foot and, additionally in the case of solid foodstuffs, grinding the mixture to effect powdering.

Abstract: The method of making citrus juice resistant to flocculation on storage, which method comprises treating naturally turbid citrus juice having a pH below 2.5 with a pectinase of the polygalacturonase-pectinesterase type at a temperature below 30.degree. C. until the alcohol test for pectin is negative, and then decanting the flocculation-resistant supernatant juice after settling.

Abstract: A method is disclosed for preserving proteinaceous animal food materials useful as bait for fish and crustaceans, such as crab. The animal food material is comminuted together to a finely divided state of the consistency of a thick soup with at least 4% by weight, based on the weight of the animal food material, of a polyol having from 2 to 8 carbon atoms and 2 to 6 hydroxyl groups. Edible polyols are used when the end product is to be used as a bait or foot supplement. Anti-oxidants and/or mold inhibitors are also preferably added to the animal food material/polyol mixture. The mixture is further stabilized against decay for extended periods of time when stored at ambient temperatures by incorporating into the mixture a sufficient amount of attapulgus clay to dehydrate the animal food material/polyol mixture. The resulting mixture may be extruded into a shaped form for use as a crab bait or used in granular form.

Abstract: A low beverage soluble iron content filter aid, especially diatomite, is disclosed, as is the method for its production, which comprises contacting the granular filter aid with tannic acid, gallic acid, or mixtures thereof, preferable in aqueous solution. Color control agents such as citric acid may also be present in the solution. The treated filter diatomite is useful in the filtration of vegetable based beverages, especially beer, wine, ale and fruit juices. The invention is also applicable to other filter aids which contain beverage soluble iron, such as perlite.

Abstract: Malt beverages such as beer containing small quantities of proteinaceous and tannin materials which react to form a precipitate that renders the beverage hazy or cloudy when chilled are stabilized by passing the beverage through a fluidized bed of adsorbent particles such as polyvinylpyrrolidone or silica gel to adsorb the proteinaceous and/or tannin materials. A portion of the adsorbent bed containing adsorbed material is continuously removed and regenerated by separating the adsorbed material from the adsorbant particles, and the regenerated adsorbant particles are returned to the bed. The use of the fluidized bed provides a high concentration of adsorbant to promote increased efficiency, while enabling the adsorbant to be continuously regenerated and reused.

Abstract: A composition is disclosed which is useful for reduction (by as much as 50% or more) of the rate of free fatty acid buildup and color degradation in cooking oils in fast food outlets and other eating establishments. The composition consists essentially of three specifically defined components: 47 to 59 parts by weight diatomite, 28 to 36 parts by weight synthetic calcium silicate hydrate, and 12 to 24 parts by weight synthetic magnesium silicate hydrate. Also disclosed is a process for achieving such reduction by treating the oil (as by filtering) with the composition.

Abstract: In a method for the clarification of fruit juice by treatment thereof with pectinase at a temperature between 35.degree. and 55.degree. C. and subsequent settling in the presence of gelatin and silica sol, the improvement wherein the settling is carried out at a temperature between 35.degree. and 55.degree. C.

Abstract: Bitter substances (isohumulones) are removed from brewers yeast suspensions or brewers yeast autolysates by contacting a yeast suspension or yeast autolysate with a composite adsorbent material containing an adsorbent and magnetic particles embedded in a porous matrix of organic polymeric material having a pore size within the range of 2-30nm, and separating the composite containing isohumulone molecules adsorbed thereto from the suspension or autolysate. The composite may be regenerated by removing the adsorbed isohumulone which can then be recovered.

Abstract: In the fining of a protein-containing beverage such as a fruit juice or a grape or fruit wine or a must therefor in unfermented, partially fermented or fermented form, wherein silica sol is added to said beverage, and the deposit formed is separated off, the improvement which comprises adding an aluminate-modified silica sol to said beverage, whereby the protein removing and flocculation occurs more readily than with unmodified silica sol. The aluminate is preferably added in the form of sodium aluminate. Optionally gelatin is also added.

Abstract: The present invention provides an improved process for increasing the chill haze stability of aqueous liquids derived from fruits and vegetables, (e.g., beer, wine, fruit juices, vinegar, etc.) by using one or more haze control agents in a precoat or after precoat layer in the filter media used to filter the liquid and by adding one or more haze control agents as a body feed upstream of the filter. In a preferred embodiment one or more haze control agents are also added in ruh storage at a time in the process significantly before the filtration step. This improved process permits the beverage to be packaged immediately after filtration, thus eliminating the time consuming and space consuming storage following filtration normally required by conventional chill haze control techniques.

Abstract: Undesirable protein and polyphenol molecules are removed from aqueous liquids or suspensions, such as wort, wine, or beer, by contacting the liquid with acid-treated synthetic magnesium silicates containing less than about 14% magnesium oxide. The resultant liquid is more resistant to chill haze formation. Even better results are obtained if a polyamide is blended with the acid-treated synthetic silicate prior to contact with the liquid. A filter aid, such as diatomite, can also be combined with the acid-treated synthetic magnesium silicate and/or the blends containing the polyamide.