See Premature ventricular contraction GI disease The shortening of the muscularis propria of the GI tract, resulting in peristalsis. See Giant peristaltic contraction Obstetrics The shortening of myometrial cells, resulting in â intrauterine tension. See Braxton Hicks contraction Physiology A â in muscle length, accompanied by â tension.
New method for the early detection of vineyard mildew, powdery mildew and botrytis. May 9, 2013. The Basque Institute for Agricultural Research and Development, Neiker-Tecnalia, has developed a new method for the early detection of the diseases mildew, powdery mildew and botrytis in vines.
In hotter climates, vines use tartaric acid for respiration, decreasing the total acidity in the grapes. However, the decrease in tartaric acid is not as profound as the decrease in malic acid through the same process. This is one of the mechanisms that winemakers use to control the acid content in their wine.The total acidity in a wine is measured by the amount of Tartaric Acid present.Tartaric Acid plays a critical role in the taste, feel and color of a wine. But even more important, it lowers the pH enough to kill undesirable bacteria, acting as a preservative.he influence of tartaric acid on the taste and feel of a wine is primarily through its impact on acidity. It contributes to the âtartnessâ of a wine, but not as much as malic and citric acid. Winemakers will adjust acidity by adding tartaric acid to the wine.