Medicines Foods: Pineapple

Citric Acid (2-Hydroxy-1,2,3-propane-tricarboxylic Acid) (Citronensaure or 3 Oxy-propan-tricarbon-saure in Ger), C HgO, mw 192.12 col crysts, mp 153°,bp decomp, d 1.542 at 20/4° sol in w or ale si sol in eth can be obtained from lemon, lime or pineapple juice. It has been used in foods, drinks, medicines NC lacquers, alkyd resins, etc (Refs 1,3 5). Davis (Ref 2) describes its use in prepn of HMTPDA and Zenftman Forlin (Ref 4) patented its use in fuse compns Refs l)Beil 3, 556, (194) [359] 2)Davis (1943), 451 3)Kirk Othmer 4, (1949), 8-23 (A review with 45 refs) 4)H.Zenftman J.Forlin,... 

PDMS is being used as medicine (up to 15 g/day by oral intake) for digestive tract ailments and as direct food additives. The use of dimethyl polysiloxane is permitted in jams, jellies, marmalade, pineapple juice, and chewing gum up to 10 mg/kg under the E900 number. PDMS is extensively used in cosmetics, for example, in hand creams. Studies have confirmed that PDMSs have low toxicity. 

This study showed that the bacterial cellulose derived fix)m coconut and pineapple juices can be converted efficiently to bacterial cellulose by the supplementation of yeast extract and ethanol under static fermentation conditions at 30 °C. Bacterial celluloses produced from all strains are growth associated products. Coconut juice seems to be a better substrate than pineapple juice. In view of energy consumption, the productivity of BC on this medium is high, which makes the production costs lower than expected. It is also clear that different A. xylinum strains produce different BC content levels under the same inoculation volumes and under static cultivation conditions. These results suggest that bacterial cellulose pellicles of all strains appear to be easily applied to use in many applications such as food, paper, and textile industries, without requiring additional steps of decolorization and purification. Furthermore, the properties of cellulose, in tenns of crystallinity, high water-absorption capacity, and mechanical strength of the reported strains, have additional applications in cosmetics and medicine. 

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