FRUIT WINE FILTRATION AND CLARIFICATION METHOD

• Main Authors: OKAMURA DAISUKE, HORIUCHI SHUNSUKE, SHIKI SATOSHI, NAKAZAWA YUKIO, NAKAMOTO KOHEI
• Format: Patent
• Language: English; Japanese
• Published: 10.09.2020
• Subjects: AGEING; BEER; BIOCHEMISTRY; CHEMISTRY; CLARIFICATION; ENZYMOLOGY; METALLURGY; MICROBIOLOGY; MUTATION OR GENETIC ENGINEERING; OTHER ALCOHOLIC BEVERAGES; PASTEURISATION; PREPARATION THEREOF; PRESERVATION; PURIFICATION; SPIRITS; STERILISATION; VINEGAR; WINE

To provide a fruit wine filtration and clarification process, in which the change in chromaticity component before and after filtration is small, the removal rate of grounds component is high, and the water permeability recovery after the cleaning step and the resistance to the cleaning solution (chemical solution) are also high.SOLUTION: A method for producing fruit wine, including the following steps: a fermentation step of fermenting a fruit to yield a fruit wine that contains aggregates of grounds components; and a filtration/clarification step of passing the fruit wine obtained in the fermentation step through a porous membrane composed of a resin having a three-dimensional network structure to separate the filtrate from the aggregates of the grounds components, and in which, characterized, the porous membrane is a particular membrane having a high intercommunication property, and, when setting the absorbance, at an arbitrary wavelength of 250 nm to 650 nm, of the fruit wine before the filtration/clarification step as X1 and the absorbance of fruit wine after the filtration/clarification step as X2, satisfies the relationship of X2/X1≥0.75.SELECTED DRAWING: None 【課題】ろ過前後の色度成分の変化が小さく、澱成分の除去率が高く、洗浄工程後の透水量回復性や洗浄液（薬液）耐性も高い、多孔質膜を用いた果実酒のろ過・清澄化工程の提供。【解決手段】以下の工程：果実を発酵させて、澱成分の凝集体を含有する果実酒を得る発酵工程；及び発酵工程で得られた果実酒を、３次元網目構造の樹脂から構成される多孔質膜に通過させて、該澱成分の凝集体からろ液を分離するろ過・清澄化工程；を含む果実酒の製造方法であって、該多孔質膜は、特定の連通性の高い膜であり、かつ、２５０ｎｍ〜６５０ｎｍの任意の波長における、該ろ過・清澄化工程前の果実酒の吸光度をＸ１、該ろ過清澄化工程後の果実酒の吸光度をＸ２とするとき、Ｘ２／Ｘ１≧０．７５の関係を満たす、ことを特徴とする果実酒の製造方法。【選択図】なし