This paper looks at the theoretical development of a natural preservative system using a data base on medicinal plants as a source of reference. The legal aspects of this concept are considered. The traditional methods of preservation, many taken from the food industry are summarised. The use of alcohol, glycerine, sugar, salt, dessication, anhydrous systems and temperature are amongst examples...

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introduction: in this study, the chemical composition and antimicrobial activity of essential oil of ziziphora clinopodiodes and its potential application as a natural preservative in reducing the indigenous microbial population of hamburger were investigated. method: essential oil of ziziphora clinopodiodes cultivated in iran was obtained by hydro-distillation method (hdm). chemical compositio...

CONTEXT Botulinum A exotoxin is used for various indications, including the treatment of dynamic forehead lines. OBJECTIVE To determine whether injection with botulinum A exotoxin reconstituted with preservative-containing normal saline (isotonic sodium chloride) is less painful than injection with exotoxin that has been reconstituted with preservative-free saline. DESIGN Two arms: (1) retr...

Tofu is a food product that easily contaminated by microbial due to its water content. Some bacteria usually grow in tofu are Escherichia coli, Bacillus cereus, or Staphylococcus aureus. Preservatives added solve the common storage problem. However, some manufacturers use hazardous substances, such as formalin other chemical preservative. Tiwai onion (Sisyrinchium palmifolium L.) plant grows Bo...