The effect of stem diameter on the Brassica napus (type: canola) (cultivar: HYHEAR 3) fiber quality

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dc.contributor.authorParvin, Afroza
dc.contributor.examiningcommitteeJian, Fuji (Biosystems Engineering) Cattani, Doug (Plant Science)en_US
dc.contributor.supervisorRahman, Mashiur (Biosystems Engineering) Zhong, Wen (Biosystems Engineering)en_US
dc.date.accessioned2021-05-31T19:06:34Z
dc.date.available2021-05-31T19:06:34Z
dc.date.copyright2021-04-27
dc.date.issued2021-04-27en_US
dc.date.submitted2021-04-27T20:26:38Zen_US
dc.degree.disciplineBiosystems Engineeringen_US
dc.degree.levelMaster of Science (M.Sc.)en_US
dc.description.abstractA matured canola plant has different stems based on the diameter. Therefore, this study was mainly focused on the investigation of the physical and mechanical properties of the canola fibers extracted from narrow, medium and wide stems and also observed the effects of a chemical softener (Cepreton UN) on the fiber properties. After treating with 2% and 10% Cepreton UN, the fibers were compared with the control fibers. Yield (%), length, diameter, strength, contact angle and also moisture regain (%) of fibers were measured. The stem diameter didn’t have any effect on the yield (%) of fibers. ANOVA also showed that stem diameter had effects on all fiber properties except for average length and elongation at break. The mean values of fiber diameter, elongation at break, load at break, tenacity, and contact angle were highest for 7-10 mm diameter stem fibers. On the contrary, the mean values of the tensile stress, young’s modulus, aspect ratio, and moisture regain (%) were found to be lowest for 7-10 mm diameter stem (medium mature) fibers. Therefore, 7-10 mm diameter stem fibers found to be less stiff. Moisture regain ability showed that canola fibers isolated from ≥ 8 mm stem diameter were less hydrophilic whereas contact angle measurement showed relatively more hydrophobic nature of 7-10 mm stem fibers. Overall, this study suggested to sort out different qualities of canola fibers for commercial applications. In most cases, the fiber diameter was decreased in both 2% and 10% treated 7-10 mm stem fibers. The mean values of elongation at break, load at break, tenacity, and contact angle were decreased for 10% and increased for 2% and the mean values of tensile stress, young’s modulus, and aspect ratio were decreased for 2% and increased for 10% treated 7-10 mm stem fibers. Moisture regain (%) mostly decreased for 2% and increased for 10% treated fibers. Low pH (4.5) had almost similar effect on fibers as 2% Cepreton UN. Overall, 2% Cepreton UN treatment was found to be better than 10% to make canola fibers less stiff and low pH was found to be an alternative softener treatment strategy.en_US
dc.description.noteOctober 2021en_US
dc.identifier.citationAPAen_US
dc.identifier.urihttp://hdl.handle.net/1993/35669
dc.language.isoengen_US
dc.rightsopen accessen_US
dc.subjectCanolaen_US
dc.subjectFiberen_US
dc.subjectStemen_US
dc.subjectDiameteren_US
dc.subjectSofteneren_US
dc.subjectCepreton UNen_US
dc.subjectElongation at breaken_US
dc.subjectLoad at breaken_US
dc.subjectTenacityen_US
dc.subjectContact angleen_US
dc.subjectTensile stressen_US
dc.subjectYoung’s modulusen_US
dc.subjectAspect ratioen_US
dc.titleThe effect of stem diameter on the Brassica napus (type: canola) (cultivar: HYHEAR 3) fiber qualityen_US
dc.typemaster thesisen_US
local.subject.manitobayesen_US
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