Ramie Fibre Processing and Value Addition

Jose, Seiko; Rajna, S.; Ghosh, Pallabi

doi:10.3923/ajt.2017.1.9

Cited by 27 publications

(19 citation statements)

References 20 publications

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“…However, despite the remarkable qualities of this fibre, ramie has received comparatively little attention as an important world crop. However, commercial cultivation of this crop has recently increased in countries such as China, Brazil, and the Philippines 10 .…”

Section: Introductionmentioning

confidence: 99%

Interactive effect of gibberellic acid and NPK fertilizer combinations on ramie yield and bast fibre quality

Ullah

Anwar

Rehman

et al. 2017

Sci Rep

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Understanding the effects of different combinations of nitrogen (N), phosphorus (P) and potassium (K) fertilizers and the effects of GA3 (gibberellic acid) foliar spray on the fiber quality and yield of ramie are important for maximizing the economic value of these plants. Three pot experiments were conducted using low NPK (140:70:140 kg/ha), normal NPK (280:140:280 kg/ha), and low NPK + GA3 (10 mg/L) treatments. In each experiment, following fertilizers were applied: no fertilizer (control), N, P, K, NP, NK, PK, and NPK. Ramie was harvested three times from each plant; ramie grown without fertilizers had significantly lower biomass and yield than plants grown with fertilizers. At both normal and low fertilization rates, application of NPK resulted in greater growth and yield than application of N, P, K, NP, NK, or PK. Unfertilized plants produced the thinnest fibres (22-24 µm), with lowest elongation rate (3.0–3.1%) and breaking strength (22.7–23.3 cN). Fibre yield and fibre quality were improved by application of GA3 + fertilizers. Maximum fibre yield was obtained at low NPK + GA3 treatment, resulting in 65–81% more yield than low NPK alone. GA3 with low NPK treatment significantly improved fibre diameter, fibre elongation, and breaking strength compared to both NPK alone and control treatment.

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Section: Introductionmentioning

confidence: 99%

Interactive effect of gibberellic acid and NPK fertilizer combinations on ramie yield and bast fibre quality

Ullah

Anwar

Rehman

et al. 2017

Sci Rep

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“…Fiber extracted from ramie (Boehmeria nivea L.) stem is the longest and one of the strongest natural fine textile fibers [4]. In recent years, the rapidly growing application of ramie for addressing needs of feed [5,6], phytoremediation [7], and mushroom production [8] has made the crop a research hotspot, and the commercial cultivation of this crop has increased in countries such as China, Brazil, and the Philippines [9]. Nitrogen is the primary nutrient required for optimal growth and fiber yield [10][11][12].…”

Section: Of 15mentioning

confidence: 99%

Transcriptome Analysis of High-NUE (T29) and Low-NUE (T13) Genotypes Identified Different Responsive Patterns Involved in Nitrogen Stress in Ramie (Boehmeria nivea (L.) Gaudich)

Tan

Gao

et al. 2020

Plants

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Nitrogen-use efficiency (NUE) has significant impacts on plant growth and development. NUE in plants differs substantially in physiological resilience to nitrogen stress; however, the molecular mechanisms underlying enhanced resilience of high-NUE plants to nitrogen deficiency remains unclear. We compared transcriptome-wide gene expression between high-NUE and low-NUE ramie (Boehmeria nivea (L.) Gaudich) genotypes under nitrogen (N)-deficient and normal conditions to identify the transcriptomic expression patterns that contribute to ramie resilience to nitrogen deficiency. Two ramie genotypes with contrasting NUE were used in the study, including T29 (NUE = 46.01%) and T13 (NUE = 15.81%). Our results showed that high-NUE genotypes had higher gene expression under the control condition across 94 genes, including frontloaded genes such as GDSL esterase and lipase, gibberellin, UDP-glycosyltransferase, and omega-6 fatty acid desaturase. Seventeen stress-tolerance genes showed lower expression levels and varied little in response to N-deficiency stress in high-NUE genotypes. In contrast, 170 genes were upregulated under N deficiency in high-NUE genotypes but downregulated in low-NUE genotypes compared with the controls. Furthermore, we identified the potential key genes that enable ramie to maintain physiological resilience under N-deficiency stress, and categorized these genes into three groups based on the transcriptome and their expression patterns. The transcriptomic and clustering analysis of these nitrogen-utilization-related genes could provide insight to better understand the mechanism of linking among the three gene classes that enhance resilience in high-NUE ramie genotypes.

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“…It also has high degree of crystallinity. Its fiber is durable and resistant to attacks of bacteria and insects (Jose, Rajna, & Ghosh, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…Young ramie stems are green and more or less pilous, while mature ones are brown and glabrous, cylindrical and rarely branched, with average length between 1 and 3 meters (Jose, Rajna, & Ghosh, 2017). It is possible to identify three well-defined structures from the outside in, namely: cortex (cortical zone or bark); phloem; xylem (cambial zone); and pithy core (medullar zone).…”

Section: Introductionmentioning

confidence: 99%

“…The individual cells of ramie stems are linked by bundles of fibers wrapped in waxes, lignin, cellulose and pectin, among other components, which are difficult to remove (Ray, Banerjee, Satya, Ghosh, & Biswas, 2017). According to Smole, Hribernik, Kleinschek, and Kreze (2013) and Jose, Rajna, and Ghosh (2017) mechanical, chemical and biological processes or combinations of two or more of these are required for extraction of the fibers. Unlike other bast fiber plants, ramie phloem has excessive amounts of colloidal substances such as pectin and gums (Batra, 2007).…”

Section: Introductionmentioning

confidence: 99%

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<b>Histochemical analysis of stem and fiber of ramie (<i>Boehmeria nivea</i> (L.) Gaud var. Murakami)

Marinho¹,

Muñiz²,

Nisgoski³

et al. 2018

Acta Sci. Biol. Sci.

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Analyzes of samples of stem and fiber Boehmeria nivea var. Murakami were performed to increase information on the plant and disseminate its multiple possibilities of use. The histochemical analyzes with dyes and reagents showed the presence of lignified, suberous and cutinized cell walls with Safranin in the xylem region. The presence of pectin-cellulose with Astra Blue was confirmed in the regions of fiber bundles (cortex). In all regions of the stem were identified substances such as fat and mucilage with Methylene Blue evidencing high concentrations in the regions of fiber bundles and bark (violet blue). By means of Lugol (dark brown) starches were identified in several parts of the stem with concentrations in the xylem and epidermal regions. Through analyzes by EDS it was possible to identify F, Mg, Al, Si, K and Ca with predominance of K. In the chemical analyzes of the fibers were found 71.75 of cellulose, 12.11 of hemicelluloses, 1.06 of lignin and 1.70% of ashes. The percentages of extractives soluble in hot and cold water were 5.28 and 3.12% respectively, for Ethanol-Toluene was 8.55 and NaOH (1%) 27.27%. Histochemical analyzes revealed important characteristics of the fiber and stem contributing with better knowledge of the species.

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Ramie Fibre Processing and Value Addition

Cited by 27 publications

References 20 publications

Interactive effect of gibberellic acid and NPK fertilizer combinations on ramie yield and bast fibre quality

Interactive effect of gibberellic acid and NPK fertilizer combinations on ramie yield and bast fibre quality

Transcriptome Analysis of High-NUE (T29) and Low-NUE (T13) Genotypes Identified Different Responsive Patterns Involved in Nitrogen Stress in Ramie (Boehmeria nivea (L.) Gaudich)

<b>Histochemical analysis of stem and fiber of ramie (<i>Boehmeria nivea</i> (L.) Gaud var. Murakami)

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