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Argon Plasma Treatment of Tapioca Starch Using a Semi-continuous Downer Reactor
Chaiwat W. - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): Argon Plasma Treatment of Tapioca Starch Using a Semi-continuous Downer Reactor
ผู้แต่ง / หัวหน้าโครงการ (EN): Chaiwat W.
บทคัดย่อ (EN): To develop a novel modification process of tapioca starch using low-pressure argon plasma treatment in a large-scale production, a semi-continuous downer reactor was designed to provide a production rate of 0.1–0.5 kg per cycle. Physicochemical and rheological properties of plasma-treated starch were investigated in order to predict the phenomena occurred during the plasma treatment. Native tapioca starch (NTS) was plasma-treated for 1, 3, or 6 cycles, which were referred to as PTS-1, PTS-3, or PTS-6 samples, respectively. Plasma treatment of the NTS resulted in a significant decrease (P < 0.05) in paste clarity and Rapid Visco Analyzer (RVA) breakdown viscosity, and an increase in gel strength of starch. The PTS-1 had the lowest paste clarity of 39.85 %T at 650 nm and breakdown viscosity of 29.71 Rapid Visco Unit (RVU), and the highest gel strength, e.g., G′ = 5.47ω0.32. With increasing the number of treatment cycles, i.e., the PTS-3 and PTS-6, the paste clarity and breakdown viscosity significantly increased (P < 0.05), while the gel strength decreased. The Fourier transform infrared (FTIR) spectroscopy via relative areas of C–O–C peaks indicated that the PTS-1 had a significant increase (P < 0.05) in the C–O–C cross-linked bonds compared to the NTS, but the effect of depolymerization could further suppress the cross-linking reaction when the number of treatment cycle was increased. Taking an advantage of a very short residence time (less than 0.3 s) in the plasma downer reactor, the semi-continuous process of starch modification could be developed for a commercial production of non-chemically modified starch with a relatively low degree of cross-linking. © 2016, Springer Science+Business Media New York.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เอกสารแนบ (EN): https://www.scopus.com/inward/record.uri?eid=2-s2.0-84959359116&doi=10.1007%2fs11947-016-1701-6&partnerID=40&md5=91b7abaf656967016b0355aeb391f210
เผยแพร่โดย (EN): มหาวิทยาลัยมหิดล
คำสำคัญ (EN): Starch
เจ้าของลิขสิทธิ์ (EN): มหาวิทยาลัยมหิดล
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Chaiwat W.. "Argon Plasma Treatment of Tapioca Starch Using a Semi-continuous Downer Reactor". ไม่ระบุหน่วยงาน. ม.ป.ป.

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Argon Plasma Treatment of Tapioca Starch Using a Semi-continuous Downer Reactor
Chaiwat W.
มหาวิทยาลัยมหิดล
ไม่ระบุวันที่เผยแพร่
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