The relative stability of spores of Bacillus cereus grown at three different temperatures was examined by using quasi-elastic light scattering (q.l.s.) in conjunction with turbidity and scanning electron microscopy (s.e.m.). Cultures grown at 20, 30 and 40 degrees C (BC20, BC30 and BC40 respectively) were compared in terms of (i) their effective hydrodynamic radius, rH, as determined from q.l.s...

In this study, an eco-friendly process utilizing a low concentration of hydrogen peroxide along with autoclaving and sonication was developed, accomplishing both carbon nanotube size reduction and hydroxyl functionalization.

Technical Papers Suppression of Gastric Acidity with Beta Particles of P32: Norman Simon ........................ 563 P-Glueuronidase Activity: L. D. Odell, J. Burt, and R. Bethea .................. 564 The Nature of the Pigmented Sheath in Drosophila Tumors: Ernest W. Hartung and M ary-Garnett Tillinghast ...................................... .565 An Internal Geiger Counter for the Assay of L...

BACKGROUND According to the guideline of the United States center for disease control (CDC), the extracted teeth should be sterilized by autoclaving or storage in 10% formalin before using for educational or research purposes. The objective of this study was to evaluate the effect of this protocol on microhardness of dentin and enamel. MATERIAL AND METHODS Thirty extracted single-root teeth w...

The purpose: The aim of this in-vitro pilot study was to evaluate the effect of steam autoclaving of the implant analog and impression coping on the accuracy of impression procedure. Materials and methods: A master casts model was constructed, with a pair of commercially available fixtures. Ten pairs of impression copings were used to make the impression. Implant analogs were then attached to t...

This study investigated the effects of autoclaving-time treatment (0, 3, 5, and 7 minutes) on physicochemical antioxidant properties Indonesian instant cassava porridge or rowe luwa. The shelf-life prediction luwa also was determined. contained nutrition, such as moisture content (4.41%), fat (7.69%), protein (11.77%), carbohydrates (67.15%), energy (384.89 kcal), zinc (2.73 mg/100g), calcium (...

BACKGROUND Accidental autoclaving of L-glutamine was found to facilitate the Agrobacterium infection of a non host plant like tea in an earlier study. In the present communication, we elucidate the structural changes in L-glutamine due to autoclaving and also confirm the role of heat transformed L-glutamine in Agrobacterium mediated genetic transformation of host/non host plants. RESULTS When...

Various methods, including autoclaving, bead-beating, microwaves, sonication, and a 10% NaCl solution, were tested to identify the most effective cell disruption method. The total lipids from Botryococcus sp., Chlorella vulgaris, and Scenedesmus sp. were extracted using a mixture of chloroform and methanol (1:1). The lipid contents from the three species were 5.4-11.9, 7.9-8.1, 10.0-28.6, 6.1-8...

BACKGROUND The unique resistance of prions to classic methods of decontamination, and evidence that prion diseases can be transmitted iatrogenically by medical devices pose a serious infection control challenge to health-care facilities. In view of the widespread tissue distribution of the variant Creutzfeldt-Jakob disease agent in human beings, new practicable decontamination procedures are ur...

The aim of the study was to determine the technical and economic optimum levels of raw and treated common vetch seed (CVS) on the productive performance and egg quality traits in laying hens. One hundred and sixty-eight White (Lohmann) layers, 30 weeks of age were randomly assigned to seven groups, each with six replicate cages of four hens. Control diet (C) and basal diets supplemented with 12...