When the level of thyroid hormones (T3 & T4) drops too low, the pituitary gland produces Thyroid Stimulating Hormone (TSH) which stimulates the thyroid gland to produce more hormones. Under the influence of TSH, the thyroid will manufacture and secrete T3 and T4 thereby raising their blood levels. +The pituitary senses this and responds by decreasing its TSH production. One can imagine the thyroid gland as a furnace and the pituitary gland as the thermostat.
Compared to vegetable oil, vegetable shortening is solid at room temperature, white in color, and much less prone to rancidity as it is a saturated fat. It has essentially an unlimited shelf life.It is also very neutral in flavor, so is often used to grease pans.egetable oil is converted into vegetable shortening by hydrogenating it, forcing hydrogen to bind on to the ends of the fatty acids. This is done by forcing hydrogen to bubble through the oil under pressure, heat, and in the presence of a catalyst.
Shortening is any fat that is solid at room temperature and used to make crumbly pastry and other food products. Shortening is used in pastries that should not be elastic, such as cake.Although butter is solid at room temperature and is frequently used in making pastry, the term shortening seldom refers to butter, but is more closely related to margarine.ince the invention of hydrogenated vegetable oil in the early 20th century, shortening has come almost exclusively to mean hydrogenated vegetable oil. Vegetable shortening shares many properties with lard: Both are semi-solid fats with a higher smoke point than butter and margarine.