Characteristics of the tertiary egg membrane of cuttlefish Sepiella maindroni de Rochebrune |
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| Authors: | Chunlin Wang Xiaoxu Fan Xiamin Jiang Weiwei Song Yongjian Xu |
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| Institution: | (1) Laboratoire d’Analyse, Traitement et Valorisation des Polluants de l’Environnement et des Produits, Department of Microbiology, Faculty of Pharmacy, Rue Avicenne, Monastir, 5000, Tunisia;(2) Dipartimento di Scienze Biomediche, Sezione di Microbiologia Sperimentale e Clinica, Universita di Sassari, Viale San Pietro 43/b, 07100 Sassari, Italy |
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| Abstract: | We separated tertiary egg membrane (TGM) from 2- and 25-day-old eggs of cuttlefish Sepiella maindroni de Rochebrune, and revealed its ultrastructure, physical (solubility, barrier property) and biochemical (histology, histochemistry,
nutritional components, bacteriostasis) characteristics. The results show that TGM could not be dissolved with natural seawater,
alcohol, ether or hydrochloric acid (HCl), but it could be dissolved with 2-chloroethanol, diethylamine, and sodium hydroxide
(NaOH). The black TGM was more effective in blocking off mud particulates, microorganisms (Chlorella vulgaris, Vibrio alginolyticus) and lighter than the white TGM. The elasticity of black and white TGMs was 1.8 N and 1.5 N, respectively. There were some
ink particulates and rod-shaped bacteria in the black TGM. The nutritional components were different between black and white
TGMs: Lipid content was lower and protein content was higher in the black TGM. TGM could also inhibit the growth of Vibrio alginolyticus. |
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