Improvement of rheological and functional properties of defatted rice bran protein bioplastic by kraft lignin addition

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Rattanatham P., Kunanopparat T., Siriwattanayotin S.

ปีที่เผยแพร่ (ค.ศ.): 2011

วารสาร: Thai Journal of Agricultural Science (0049-3589)

Volume number: 44

Issue number: 5

หน้าแรก: 56

หน้าสุดท้าย: 61

จำนวนหน้า: 6

นอก: 0049-3589

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84877040751&partnerID=40&md5=20fda22a575b637e95cc80c39b0f80ea

ภาษา: English-Great Britain (EN-GB)

บทคัดย่อ

The aim of this research was to study the effect of Kraft lignin (KL) on rheological and functional properties of defatted rice bran protein (DRBP) blend. DRBP was extracted from defatted rice bran by alkaline extraction. DRBP plasticized with 30% glycerol was blended with 0-70% KL and then hot-molded using compression molding. Viscosity, storage modulus, mechanical properties and water absorption of plasticized KL/DRBP blend were respectively determined by capillary rheometer, dynamic mechanical thermal analysis, texture analyzer and water immersion method. Concerning the rheological properties, KL addition resulted in a decrease in viscosity and storage modulus in rubbery state of DRBP blends at processing temperature. In addition, an introduction of KL in DRBP blend improved functional properties of materials in terms of mechanical properties and water absorption. The KL/DRBP bioplastics exhibited higher Young's modulus and tensile strength and lower water absorption compared to DRBP-based materials. Therefore, the addition of KL can be considered as a good way to improve processability due to a decrease in viscosity and also improve properties of DRBP-based bioplastic.

คำสำคัญ

Defatted rice bran protein