1. Publications of Sefik Tunc. Page 1 of 3
SEFIK TUNC
Orono, ME / (207) 299 0771
sefik.tunc@gmail.com
PATENTS
01) Tunc, M.S., Pylkkanen,V., Retsina, T., “Lignin-coated cellulose fibers from lignocellulosic
biomass,” US 2015/0233057 (2015).
02) Tunc, M.S., Dang, Z., Wang, Z., Pylkkanen, V., “Methods of washing cellulose-rich solids from
biomass fractionation to reduce lignin and ash content,” US 20150136345 (2015).
03) van Heiningen, A., Tunc, M.S., “Prehydrolysis Kraft for dissolving pulp and hemicellulose
sugars; Production without forming of “sticky lignin” precipitates during prehydrolysis,” US
2014/015401. (2014).
04) Tunc, M.S., Monclin, J-P., “Classification of cellulose fibers for downstream conversion to
nanocellulose, sugars, or other products,” U.S. Provisional Patent App. No. 62/145,582. (2015).
05) Wang, Z., Tunc, M.S., Monclin, J-P., Pylkkanen, V., Retsina, T., “Use of lignin to improve
enzymatic digestibility of hydrothermally pretreated lignocellulosic fibers,” U.S. Provisional
Patent App. No. 62/207, 030. (2015).
06) Tunc, M.S., Wang, Z., Monclin, J-P., Retsina, T., Howe, A., “Enhancing enzymatic digestibility
of lignocellulosic fibers by classification,” U.S. Provisional Patent App. No. 62/207, 025. (2015).
07) Tunc, M.S., Kurebayashi, H., Monclin, J-P., “Increasing solids consistency of cellulose fibers
by light refining,” U.S. Provisional Patent App. No. 62/150,556. (2015).
08) Retsina, T., Monclin, J-P., Tunc, M.S., Wang, Z., “Hydrothermal-mechanical treatment of
lignocellulosic biomass for production of fermentable sugars,” U.S. Provisional Patent App. No.
62/150, 653. (2015).
09) Wang, Z., Dang, Z., Tunc, M.S., Pylkkanen, V., “Fractionation of lignocellulosic biomass for
producing highly digestible fibers and reducing lignin fouling during chemical regeneration,”
U.S. Provisional Patent App. No. 62/091,812 (2014).
10) Tunc, M.S., Wang, Z., Pylkkanen, V., Retsina, T. “Method for improving pretreatment process
of lignocellulosic biomass”, U.S. Provisional Patent App. No. 62/090,935. (2014)
11) Dang, Z., Tunc, M.S., Wang, Z., “Continuous hydrolysis of hemi extract with cleaning system,”
U.S. Provisional Patent App. No. 62/009,211. (2014).
12) Wang, Z., Dang, Z., Tunc, M.S., Pylkkanen, V., Retsina, T., “Methods for removing residual
solids from enzymatic hydrolysate to make purified fermentable sugar syrup,” U.S. Provisional
Patent App. No. 62/009,206. (2014).
PEER REVIEWED PAPERS
01) Yamamoto, M., Iakovlev, M.,Bankar, S., Tunc, M.S., van Heiningen, M., “Enzymatic hydrolysis
of hardwood and softwood harvest residue fibers released by sulfur dioxide–ethanol–water
fractionation,” Bioresource Technology. 167: 530–538. (2014).
02) Tunc, M.S., “Effect of liquid to solid ratio on autohydrolysis of eucalyptus globulus,”
BioResources. 9(2): 3014-3014. (2014).
03) Tunc, M.S., Chheda, J., van der Heide, E., Morris, J., van Heininge, A., “Pretreatment of
hardwood chips using acetic and formic acid reinforced autohydrolysis,” Holzforschung. 68(4):
401-409. (2014).
04) Yamur, E., Tunc, M.S., Banford, A., Aktas, Z., “Preparation of activated carbon from
autohydrolysed mixed southern hardwood,” Journal of Applied and Analytical Pyrolysis. 104:
470-478. (2013).

2. Publications of Sefik Tunc. Page 2 of 3
05) Tunc, M.S., Chheda, J., van der Heide, E., Morris, J., van Heininge, A., “Two stage fractionation
and fiber preparation of lignocellulosic biomass for liquid fuels and chemicals,” Industrial
Engineering Chemistry Research. 52(36): 13209-13216. (2013).
06) Tunc, M.S., Chheda, J., van der Heide, E., Morris, J., van Heininge, A., “Two-stage
fractionation of hardwoods,” BioResources. 8(3): 4380-4895. (2013).
07) Tunc, M.S., van Heiningen, A.R.P., “Characterization and molecular weight distribution of
carbohydrates isolated from the autohydrolysis extract of mixed southern hardwoods,”
Carbohydrate Polymers, 83: 8-13. (2011).
08) Yoon, S-H., Tunc, M.S., van Heiningen, A.R.P., “Near-neutral pre-extraction of hemicelluloses
and subsequent Kraft pulping of southern mixed hardwoods,” Tappi Journal, 7-15, (2011).
09) Tunc, M.S., Lawoko, M., van Heiningen, A., “Understanding the limitations of removal of
hemicelluloses during autohydrolysis of a mixture of southern hardwood,” BioResources. 5(1):
356-371. (2010).
10) Tunc, M.S., van Heiningen, A.R.P., “Hydrothermal dissolution of mixed southern hardwoods:
Effect of P-factor,” Nordic Pulp and Paper Science Journal. 24(1): 42-47. (2009).
11) Tunc, M.S., Van Heiningen, A.R.P., “Hemicelluloses extraction of mixed southern hardwood
with water at 150°C: Effect of time,” Industrial Engineering Chemistry Research, 47(18): 7031-
7037. (2008).
12) Tunc, M.S. and van Heiningen, A.R.P., “Hydrothermal dissolution of mixed southern
hardwoods,” Holzforschung. 62(5): 539-545. (2008).
13) Van Heiningen, A.; Tunc, M.S., Gao, Y., da Silva Perez, D., “Relationship between alkaline pulp
yield and the mass fraction and degree of polymerization of cellulose in the pulp,” JPPS. 30(8):
211-217. (2004).
INTERNATIONAL CONFERENCES
Presenting author is indicated in bold font.
01) Nelson, K., Retrina, T., Pylkkanen, V., Iakovlev, M, van Heiningen, A., Tunc, M.S., “High
efficiency feedstock fractionation with the Avap® biorefinery technology,” 13th AIChE Annual
Meeting, Oral Proceedings, San Diego, CA, USA, November 7, (2013).
02) van Heiningen, A., Dido, K., Tunc, M.S., “Prehydrolysis Kraft for dissolving pulp and
hemicellulose sugars; Production without forming of “sticky lignin” precipitates during
prehydrolysis,” TAPPI Peers Congress, Green Bay, Wisconsin, USA, September 15-18 (2013).
03) Tunc, M.S, Chheda, J., van der Heide, E., van Heininge, A. “Two stage fractionation,” TAPPI
2013 International Bioenergy and Bioproducts Conference, Green Bay, Wisconsin, USA,
September 18-20 (2013).
04) van Heiningen, A., Genco, J., Yoon, S., Tunc, M.S., Zou, Hi., Juo, L., Mao, M., Pendse, H.,
“Integrated forest biorefineries; Near-neutral process,” The International Chemical Congress of
Pacific Basin Societies, Oral Proceedings, Honolulu, Hawaii, USA, December 15-20 (2010).
05) Tunc, M.S., van Heiningen, A.R.P., “The effect of P-factor on autohydrolysis of mixed southern
hardwood,” 15th International Symposium on Wood, Fiber and Pulping Chemistry, Paper
Number, O-037, Oral Proceedings, Oslo, Norway, June 15-18 (2009).
06) Tunc, M.S., van Heiningen, A.R.P., “Lignin carbohydrate complexes (LCC) in autohydrolysis
extract of hardwoods,” 2008 Annual PAPTAC Meeting, Montreal, Quebec, Canada, Oral
Proceedings, Paper B451, February 5-7 (2008).
07) Tunc, M.S., Van Heiningen, A.R.P., “Hemicelluloses extraction of mixed southern hardwood
with water: Effect of temperature,” 2007 AIChE Annual Meeting, Oral Proceedings, Nov. 4 -9,
Salt Lake City, Utah, (2007).

3. Publications of Sefik Tunc. Page 3 of 3
08) Tunc, M.S., Van Heiningen, A.R.P., “Hemicelluloses pre-extraction of southern hardwood
mixture with Water,” 14th International Symposium on Wood and Pulping Chemistry, Oral
Proceedings, Durban, South Africa, June 25-28 (2007).
09) Van Heiningen, A.R.P., Tunc, M.S., “Influence of operation conditions on the extraction yield of
hemicellulose from mixed southern hardwood,” 229th ACS National Meeting, Oral Proceedings,
San Diego, CA, United States, March 13-17, (2005).
10) Van Heiningen, A.R.P, Tunc, M.S., MacEvan, K., “Extraction of hemicellulose from mixed
southern hardwood using hot water extraction,” AIChE Annual Meeting, Oral Proceedings,
Cincinnati, OH, November 3th (2005)
11) van Heiningen, A.R.P., Gao, Y., Tunc, M.S., “A new pulp yield prediction method applied to
Kraft, Kraft-AQ, Polysulfide and PSAQ pulping of rock maple,” Journal of Tianjin University of
Science and Technology, Vol.19 No.z2 P.317-323, (2004)
12) Tunc, M.S., Gao, Y., van Heiningen, A.R.P., "Pulp yield prediction of polysulfide-anthraquinone
cooks from the mass fraction and degree of polymerization of cellulose," Proc. 12th Int. Symp.
on Wood and Pulping Chemistry, Vol. 1,p. 199-202, Oral Pr., Madison, WI. USA. June 9-12
(2003).
13) van Heiningen, A., Tunc, M.S., Gao, Y., da Silva Perez, D., “Relationship between alkaline pulp
yield and the mass fraction and degree of polymerization of cellulose in pulp,” Proceedings
2003 Annual PAPTAC Meeting, Oral Proceedings, Montreal, Quebec, Canada, Paper 0610,
January 26-30 (2003).
BOOK CHAPTER
01) van Heiningen, A., Genco, J., Yoon, S., Tunc, M.S., Zou, H., Luo, J., Mao, H., Pendse, H.,
“Integrated Forest Biorefineries − Near-Neutral Process,” Chapter 17 in Sustainable Production
of Fuels, Chemicals, and Fibers from Forest Biomass, Eds. Junyong (J. Y.) Zhu, Xiao Zhang,
Xuejun (Jun) Pan, ACS Volume 1067, ISBN13: 9780841226432, DOI: 10.1021/bk-2011-1067,
Publication Date (Web): July 11, (2011).