This paper presents the outcomes from an extensive investigation on the structure and geometry of single hemp fibres, as well as configurations and related tensile strength (TS) of hemp fibres, with the aid of field emission scanning and optical microscopy. The results showed that 1) the TS increased with the decrease of the diameter of individual test pieces, due possibly to the stacks of mult...

The suitability of hemp fibres as green support material for immobilization of Acidithiobacillus ferrooxidans cells in ferrous iron bio-oxidation process was investigated. A series of experiments were carried out in shake flasks and bioreactor for both cell immobilization and iron bio-oxidation. In flask experiments, five successive batch colonization cycles resulted in 6-fold increase...

A new polymeric composite based on natural rubber reinforced with hemp has been processed by electron beam irradiation and characterized by several methods. The mechanical characteristics: gel fraction, crosslink density, water uptake, swelling parameters, and FTIR of natural rubber/hemp fiber composites have been investigated as a function of the hemp content and absorbed dose. Physical and me...

In Rigveda Soma is an evergreen plant, with thousand stalks yellow hued bestowing auspicious energy. Resembling yellow fibres of hemp ephedra was rained in Chlnoso Ho-Ma, Yellow-hemp. It was Sanskritized as Soma. Being an energizer-cum-euphoriant its juice was consumed thrice daily. Finally it became a drug of longevity, rejuvenation and resurrection even god Soma. As drug it was substituted by...

Plant fibres-cells with important mechanical functions and a widely used raw material-are usually identified in microscopic sections only after reaching a significant length or after developing a thickened cell wall. We characterized the early developmental stages of hemp (Cannabis sativa) stem phloem fibres, both primary (originating from the procambium) and secondary (originating in the cambi...

Abstract Stinging nettle ( Urtica dioica ) is a potential source material for industrial applications. However, systematic research on the ultrastructural properties of fibres lacking. Determining ultrastructure and other bast also provides new insights into studies archaeological their usage. In this study, nanostructure modern ancient samples was studied using wide-angle X-ray scattering (WAX...

Hemp is a sustainable source of natural fibres that can contribute to meet the increasing demand for technical applications in textile and composite sectors. Continuous reinforcements be produced using existing flax machinery, initially developed purposes. To achieve competitive economically viable fibre yields quality suitable secondary processing application, hemp needs adequately selected pr...

AIMS To study the effect of selected bacterial strains on hemp water-retting and properties of retted fibre. METHODS AND RESULTS The trials were performed in laboratory tanks. The traditional water-retting process, without inoculum addition, was compared to a process modified by inoculating water tanks with two selected pectinolytic bacteria: the anaerobic strain Clostridium sp. L1/6 and the ...

The ability to accurately identify fibres is of importance to conservators, allowing the most appropriate methods of treatment to be employed. Our research has concentrated on the development of an ATR FT-IR spectroscopic technique for the characterisation of cellulosic (plant) fibres. Six species of fibre were examined, taken largely from the bast group (flax, hemp, jute and ramie), along with...