Hydrolysis and fermentation of sweetpotatoes for production of fermentable sugars and ethanol

Industrial Crops and Products

Volumn 42, Issue 1, 2013, Pages 527-537

  Duvernay, William H ^a   Chinn, Mari S ^a   Yencho, G Craig ^b  

^a North Carolina State University   (United States)

^b NORTH CAROLINA STATE UNIVERSITY   (United States)

Author keywords

Enzymes; Ethanol; Fermentation; Glucose; Hydrolysis; Industrial sweetpotatoes

Indexed keywords

DRY MATTERS; FERMENTABLE SUGARS; GLUCOAMYLASE; INDUSTRIAL SWEETPOTATOES; LOADING RATE; SALT ADDITION; STARCH DEGRADATION; SUBSTRATE LOADING; SWEET POTATO; YEAST FERMENTATION;

AMYLASES; CARBOHYDRATES; DEGRADATION; ENZYMES; ETHANOL; FERMENTATION; GLUCOSE; HYDROLYSIS; LIQUEFACTION; SACCHARIFICATION; STARCH; SUBSTRATES; YEAST;

LOADING;

BIOCHEMICAL COMPOSITION; DRY MATTER; ENZYME ACTIVITY; ETHANOL; FERMENTATION; HYDROLYSIS; LIQUEFACTION; PHYTOCHEMISTRY; ROOT VEGETABLE; STARCH; SUGAR; TUBER; YEAST;

IPOMOEA BATATAS;

EID: 84864027082     PISSN: 09266690     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.indcrop.2012.06.028     Document Type: Article

References (46)

1. Arasaratnam V., Balasubramaniam K. Synergistic action of α-amylase and gluco-amylase on raw corn. Starch/Starke 1993, 45(6):231-233.
2. Azhar A., Hamdy M.K. Alcohol fermentation of sweet-potato. 1. Acid-hydrolysis and factors involved. Biotechnol. Bioeng. 1981, 23(4):879-886.
3. Biliaderis C.G. The structure and interactions of starch with food constituents. Can. J. Physiol. Pharmacol. 1991, 69(1):60-78.
4. Bondaruk J., Markowski M., Blaszczak W. Effect of drying conditions on the quality of vacuum-microwave dried potato cubes. J. Food Eng. 2007, 81(2):306-312.
5. Boulton C., Quain D. Brewing Yeast and Fermentation 2001, Blackwell Science Ltd, Iowa.
6. Bridgers E.N., Chinn M.S., Truong V.D. Extraction of anthocyanins from industrial purple-fleshed sweetpotatoes and enzymatic hydrolysis of residues for fermentable sugars. Ind. Crop Prod. 2010, 32(3):613-620.
7. Buckow R., Weiss U., Heinz V., Knorr D. Stability and catalytic activity of alpha-amylase from barley malt at different pressure-temperature conditions. Biotechnol. Bioeng. 2007, 97(1):1-11.
8. Chinn, M.S., 2003. Solid substrate cultivation of anaerobic thermophilic bacteria for the production of cellulolytic enzymes. Dissertation. Department of Biosystems and Agricultural Engineering, University of Kentucky, Lexington, KY.
9. Collado L.S., Mabesa R.C., Corke H. Genetic variation in the physical properties of sweet potato starch. J. Agric. Food Chem. 1999, 47(10):4195-4201.
10. Crabb W.D., Shetty J.K. Commodity scale production of sugars from starches. Curr. Opin. Microbiol. 1999, 2(3):252-256.
11. Dettori-Campus B.G., Priest F.G., Stark J.R. Hydrolysis of starch granules by the amylase from Bacillus stearothermophilus NCA 26. Process Biochem. 1992, 27:17-21.
12. Donovan J.W. Phase-transitions of the starch-water system. Biopolymers 1979, 18(2):263-275.
13. Duvernay, W., 2008. Conversion of industrial sweetpotatoes for the production of ethanol. M.S. Thesis. North Carolina State University, Raleigh, NC, USA.
14. Energy Efficiency and Renewable Energy (EERE) 2009 Renewable Energy Data Book 2010, U.S. Department of Energy Biomass Program, Energy Efficiency and Renewable Energy, Washington, DC, Available from: http://www1.eere.energy.gov/maps_data/pdfs/eere_databook.pdf [cited on September 8, 2011].
15. Evans J.D., Haismann D.R. The effects of solutes on the gelatinization temperature of potato starch. Starke 1982, 34:224-231.
16. Farone, W., Cuzens, J., 1996. Method of producing sugars using strong acid hydrolysis of cellulosic and hemicellulosic materials. US Patent 5,562,777. Filed March 26, 1993. Issued October 8, 1996.
17. Food and Agricultural Organization of the United Nations, 2012. Available from: [cited on March 06, 2012]. http://faostat.fao.org/site/339/default.aspx.
18. George N.A., Pecota K.V., Bowen B.D., Schultheis J.R., Yencho G.C. Root piece planting in sweetpotato - a synthesis of previous research and directions for the future. HortTechnology 2011, 21:703-711. (Reviews).
19. Hageniman V., Vezina L.P., Simard R.E. Distribution of amylases within sweet potato (Ipomoea batatas L.) root tissue. J. Agric. Food Chem. 1992, 40:1777-1783.
20. Hall M.R., Smittle D.A. Industrial-Type Sweet Potatoes: A Renewable Energy Sources for Georgia 1983, The University of Georgia, College of Agriculture Experimental Stations, p. 10.
21. Hill G.A., Macdonald D.G., Lang X. Alpha-amylase inhibition and inactivation in barley malt during cold starch hydrolysis. Biotechnol. Lett. 1997, 19(11):1139-1141.
22. Hoover R. Composition, molecular structure, and physicochemical properties of tuber and root starches: a review. Carbohydr. Polym. 2001, 45(3):253-267.
23. Houng J.Y., Chiou J.Y., Chen K.C. Production of high maltose syrup using an ultrafiltration reactor. Bioprocess. Eng. 1992, 8(1-2):85-90.
24. Karakatsanis A., Liakopoulou-Kyriakides M. Comparative study of hydrolysis of various starches by alpha-amylase and glucoamylase in PEG-dextran and PEG-substrate aqueous two phase systems. Starch/Starke 1998, 50(8):349-353.
25. Kim K., Hamdy M.K. Acid hydrolysis of sweet-potato for ethanol production. Biotechnol. Bioeng. 1985, 27(3):316-320.
26. Koehler P.E., Kays S.J. Sweet-potato flavor - quantitative and qualitative assessment of optimum sweetness. J. Food Quality 1991, 14(3):241-249.
27. Mays D.A., et al. Fuel production potential of several agricultural crops. Advances in New Crops 1990, 260-263. Timber Press, Portland, OR. J. Janick, J.E. Simon (Eds.).
28. McArdle R.N., Bouwkamp J.C. Use of heat-treatments for saccharification of sweet-potato mashes. J. Food Sci. 1986, 51(2):364-366.
29. Mojovic L., Nikolic S., Rakin M., Vukasinovic M. Production of bioethnaol from corn meal hydrolyzates. Fuel 2006, 85:1750-1755.
30. Nichols, K., 2007. NC State University Researchers Brewing Energy From Sweet Potatoes. NC State News Room. Available from: http://news.ncsu.edu/news/sweet%20potato%20release.php.
31. Noda T., Ohtani T., Shiina T., Nawa Y. Semicontinuous hydrolysis of sweet-potato raw starch by chalara-paradoxa glucoamylase. J. Food Sci. 1992, 57(6):1348-1352.
32. North Carolina SweetPotato Commission, 2008. National Agricultural Statistics Service. US Department of Agriculture. Benson, NC. Available from: [database online] [cited on July 18, 2008]. http://www.ncsweetpotatoes.com/content/view/26/40/.
33. Ridley S.C., Kim M., Heenan S., Bremer P. Evaluation of sweet potato cultivars and heating methods for control of maltose production, viscosity and sensory quality. J. Food Quality 2005, 28(2):191-204.
34. Robyt J. Enzymes in the hydrolysis and synthesis of starch. Starch: Chemistry and Technology 1984, Academic Press, New York, NY. R. Whistler, J. Beniller, E. Paschell (Eds.).
35. Roy I., Gupta M.N. Hydrolysis of starch by a mixture of glucoamylase and pullulanase entrapped individually in calcium alginate beads. Enzyme Microb. Technol. 2004, 34(1):26-32.
36. Shin S.I., Byun J., Park K.H., Moon T.W. Effect of partial acid hydrolysis and heat-moisture treatment on formation of resistant tuber starch. Cereal Chem. 2004, 81(2):194-198.
37. Srichuwong S., Sunarti T.C., Mishima T., Isono N., Hisamatsu M. Starches from different botanical sources I: contribution of amylopectin fine structure to thermal properties and enzyme digestibility. Carbohydr. Polym. 2005, 60(4):529-538.
38. Srichuwong S., Orikasa T., Matsuki J., Shiina T., Kobayashi T., Tokuyasu K. Sweet potato having a low temperature-gelatinizing starch as a promising feedstock for bioethanol production. Biomass Bioenerg. 2012, 39:120-127.
39. Stevens D.J., Elton G.A. Thermal properties of the starch/water system I. Measurement of heat of gelatinization by differential scanning calorimetry. Starke 1981, 23:8-11.
40. Vanden T., Biermann C.J., Marlett J.A. Simple sugars, oligosaccharides, and starch concentrations in raw and cooked sweet-potato. J. Agric. Food Chem. 1986, 34(3):421-425.
41. van der Maarel M., van der Veen B., Uitdehaag J.C.M., Leemhuis H., Dijkhuizen L. Properties and applications of starch-converting enzymes of the alpha-amylase family. J. Biotechnol. 2002, 94(2):137-155.
42. Weselake R.J., Hill R.D. Inhibition of alpha-amylase catalyzed starch granule hydrolysis by cycloheptaamylose. Cereal Chem. 1983, 60(2):98-101.
43. Wu X., Zhao R., Wang D., BEan S.R., Seib P.A., Tuinstra M.R., Campbell M., Brien A.O. Effects of amylose, corn protein, and corn fiber contents on production of ethanol from starch rich media. Cereal Chem. 2006, 83(5):569-575.
44. Zhang T., Oates C.G. Relationship between alpha-amylase degradation and physico-chemical properties of sweet potato starches. Food Chem. 1999, 65(2):157-163.
45. Zhang L., Chen Q., Jin Y., Xue H., Guan J., Wang Z., Zhao H. Energy saving direct ethanol production from viscosity reduction mash of sweet potato at very high gravity (VHG). Fuel Process. Technol. 2010, 91(12):1845-1850.
46. Ziska L.H., Runion G.B., Tomecek M., Prior S.A., Torbet H.A., Sicher R. An evaluation of cassava, sweetpotato and field corn as potential carbohydrate sources for bioethanol production in Alabama and Maryland. Biomass Bioenerg. 2009, 33:1503-1508.