公开(公告)号：US20160227834A1

公开(公告)日：2016-08-11

申请号：US15099971

申请日：2016-04-15

Applicant: R. J. REYNOLDS TOBACCO COMPANY

Inventor： Medwick Vaughan Byrd, JR. ,  Paul Stuart Chapman ,  Samuel Mark Debusk ,  Grady Lance Dooly ,  Anthony Richard Gerardi ,  David Neil McClanahan

IPC: A24B15/30 ,  D21C3/02 ,  D21H11/02 ,  D21H11/12 ,  A24B15/24 ,  A24B13/00

CPC classification number: A24B15/302 ,  A24B13/00 ,  A24B15/12 ,  A24B15/241 ,  C08H8/00 ,  C08L1/04 ,  C08L97/02 ,  C09J101/04 ,  D21C3/02 ,  D21H11/02 ,  D21H11/12

Abstract: Methods for producing dissolving grade pulp and microcrystalline cellulose from tobacco are provided. The methods include chemical pulping a tobacco input to form a tobacco pulp. Chemical pulping the tobacco input includes combining the tobacco input with a strong base defining a weight from about 5% to about 50% of the tobacco input, and heating the tobacco input and the strong base with an H-factor from about 500 to about 3,300. Further, the methods include bleaching the tobacco pulp to produce a dissolving grade pulp. Bleaching the tobacco pulp may include chlorination of the tobacco pulp with a chlorine dioxide solution, and caustic extraction of the tobacco pulp with a second strong base. A related tobacco-derived microcrystalline cellulose product is also provided, which can be used as a binder, a filler, and/or a texturizer in a tobacco product, such as a smokeless tobacco product.

公开(公告)号：US10745682B2

公开(公告)日：2020-08-18

申请号：US15622994

申请日：2017-06-14

Applicant: R. J. Reynolds Tobacco Company

Inventor： Andries Sebastian ,  John P. Mua ,  David Neil McClanahan ,  Sammy Eni Eni ,  Thaddeus J. Jackson

IPC: C12N9/88 ,  A23J1/00 ,  A24B15/24 ,  A24B15/12 ,  A23J3/26 ,  A23J3/34 ,  A24B15/16 ,  A23J3/14

Abstract: Ribulose-1,5-bisphosphate oxygenase (RuBisCO) protein fibers and a method of producing them are disclosed herein. The method of producing one or more RuBisCO protein fibers including obtaining RuBisCO, for example from tobacco, combining the RuBisCO with one or more plasticizers, heating the combination of the RuBisCO and the one or more plasticizers up to about 140 degrees C., filtering the heated combination through an about 20 μm filter, and passing the filtered combination through an orifice to produce one or more RuBisCO protein fibers.

公开(公告)号：US10334874B2

公开(公告)日：2019-07-02

申请号：US15099971

申请日：2016-04-15

Applicant: R. J. REYNOLDS TOBACCO COMPANY ,  NORTH CAROLINA STATE UNIVERSITY

Inventor： Medwick Vaughan Byrd, Jr. ,  Paul Stuart Chapman ,  Samuel Mark Debusk ,  Grady Lance Dooly ,  Anthony Richard Gerardi ,  David Neil McClanahan

IPC: A24B15/30 ,  D21C3/02 ,  D21H11/02 ,  D21H11/12 ,  A24B15/24 ,  A24B13/00 ,  C08H8/00 ,  C08L1/04 ,  C08L97/02 ,  C09J101/04 ,  A24B15/12

Abstract: Methods for producing dissolving grade pulp and microcrystalline cellulose from tobacco are provided. The methods include chemical pulping a tobacco input to form a tobacco pulp. Chemical pulping the tobacco input includes combining the tobacco input with a strong base defining a weight from about 5% to about 50% of the tobacco input, and heating the tobacco input and the strong base with an H-factor from about 500 to about 3,300. Further, the methods include bleaching the tobacco pulp to produce a dissolving grade pulp. Bleaching the tobacco pulp may include chlorination of the tobacco pulp with a chlorine dioxide solution, and caustic extraction of the tobacco pulp with a second strong base. A related tobacco-derived microcrystalline cellulose product is also provided, which can be used as a binder, a filler, and/or a texturizer in a tobacco product, such as a smokeless tobacco product.