Who is a Jew? familiar with and willing to vouch for the Jewishness of their maternal lineage or the validity of their conversion. There have been several attempts to convene representatives of the three major movements to formulate a practical solution to this issue. To date, these have failed, though all parties concede the importance of the issue is greater than any sense of rivalry among them. Ethnic Jew is a term generally used to describe a person of Jewish parentage and background who does not necessarily actively practice Judaism, but still identifies with Judaism or other Jews culturally or fraternally, or both. The
Wine chemistry by "Brettanomyces" that cause wine faults include 4-ethylguaiacol and isovaleric acid. Coumaric acid is sometimes added to microbiological media, enabling the positive identification of "Brettanomyces" by smell. Geraniol is a by-product of the metabolism of sorbate. Fusel alcohols are a mixture of several alcohols (chiefly amyl alcohol) produced as a by-product of alcoholic fermentation. Wine chemistry Wine is a complex mixture of chemical compounds in a hydro-alcoholic solution with a pH around 4. Gum arabic has been used in the past as fining agent. List of additives permitted for use in the production of wine under EU law: A wine