Lemon freeze-drying

Lime [4.15] described the freeze drying of avocado salad (88.7 % avocado-meat, 4.6 % lemon juice, 0.7 % onion powder, 1.43 % NaCl, and 5.0 % cracker powder) ending with a... 

Lime [4.15] described the freeze-drying of avocado salad (88.7% avocado meat, 4.6% lemon juice, 0.7% onion powder, 1.43% NaCl and 5.0% cracker powder), ending with an RM from less than 1% up to 8%. Tsh was +38 °C. The dried products were placed in cans at room temperature (20 °C) with a maximum RM of 25%. The product in the cans was under vacuum or air or stored under N2 for 48 weeks at -18, +5, +20 and +38 °C. Figure 4.5 shows the opposite effect of RM on the formation of peroxides and free fatty acids. For this product, an RM of 2-3% would be optimum. In 39 samples RM was 3.25 and 2.51%, average 2.8%, standard deviation 0.2%. The taste of the product packed in air and stored at 20 °C was not more acceptable after 8 weeks. 

Flavoring agents may be classified as natural, artificial, or natural and artificial (N A) by combining the allnatural and synthetic fiavors. Pharmaceutical flavors are available as liquids (e.g., essential oils, fluid extracts, tinctures, and distillates), solids (e.g., spray-dried, crystalline vanillin, freeze-dried cinnamon powders, and dried lemon fluid extract), and pastes (e.g., soft extracts, resins, and so-called concretes, which are brittle on the outside and soft on the inside). Liquid flavors are by far the most widely used because they diffuse readily into the substrate. They are available both as oily (e.g., essential oils) or non-oily liquids. Their texture is generally dependent on the solvent within which they are prepared. Fluid extracts may contain a single ingredient or a variety of compounded ingredients. Tinctures are obtained by maceration or percolation of specific herbs and spices in alcohol. 

Maltini, E. 1974. Thermophysical properties of frozen lemon juice related to freeze-drying problems. Current studies on the Thermophysical Properties of Foodstuffs, HR-IIFCl-2. Bressanone, Italy, pp. 201-207. 

Intravenous administration of 25 mg/kg of a freeze-dried extract of lemon balm to normal rats resulted in reduced serum and pituitary gland levels of TSH. In rats with goiter, no change in TSH levels was observed after administration of lemon balm. No changes in serum prolactin were observed in either the normal or goitrous rats (Sourgens et al. 1982). 

IgG resembles TSH in the ability of IgG to bind to the thyroid plasma membrane, probably at the TSH receptor) with a freeze-dried lemon balm extract decreased the TSH-binding activity of IgG in a dose-dependent manner (Auf mkolk et al. 1985). 

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