Effect of liquid sourdough technology on the pre-biotic, texture, and sensory properties of a crispy flatbread
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The present study compared liquid sourdough technology with baker’s yeast leavening when applied to the production of a semolina-based crispy flatbread. Following in vitro starch digestion, the results revealed the sourdough leavened flatbread to contain a lower percentage of rapidly digestible starch (16%), higher amounts of slowly digestible starch (27%) and inaccessible digestible starch (4.1%) compared with the baker’s yeast leavened flatbread (20, 20, and 2.4%, respectively), making the former nutritionally healthier. The sourdough leavened bread was crispier, stiffer and more solid, as shown by texture analyses, although Raman spectroscopy revealed no differences in the crystallinity status of starch. The descriptive analyses show that the use of sourdough enhances the positive sensory traits, as rated by the consumer panel scores (6.08 vs. 5.56). In summary, the results indicate that the implementation of sourdough technology in the production of flat crispy breads could confer economic advantages to this product.
KeywordsFlatbread Resistant starch Semolina In vitro digestion Sensory analyses
The project was funded by the “Regione Autonoma della Sardegna”, POR-FESR 207-2013, Asse VI Competitività”. The authors are grateful to the staff of the bakery “Il Vecchio Forno” for their assistance during the bakery trials. MS is grateful to the panel members for their valuable collaboration during training and sensory testing sessions.
Compliance with ethical standards
All procedures followed were in accordance with the ethical standards required by the (institutional) committee responsible for human experimentation and with the Helsinki Declaration of 1975, as revised in 2008.
Informed consent was obtained from all consumers for their inclusion in the study.
- AACC. Approved Methods of the American Association of Cereal Chemists. St. Paul, Minnesota (2000)Google Scholar
- Blaak EE, Antoine JM, Benton D, Björck I, Bozzetto L, Brouns F, Diamant M, Dye, L, Hulshof T, Holst JJ, Lamport DJ, Laville, M, Lawton CL, Meheust A, Nilson A, Normand S, Rivellese AA, Theis S, Torekov SS, Vinoy S. Impact of postprandial glycaemia on health and prevention of disease. Obes. Rev. 13: 923–984 (2012)CrossRefGoogle Scholar
- Chavan RS, Chavan SR. Sourdough technology—a traditional way for wholesome foods: a review. Compr. Rev. Food Sci. Food Saf. 10: 170–183 (2011)Google Scholar
- Commission Regulation (EU) No 851/2013 of 3 September 2013 authorising certain health claims made on foods, other than those referring to the reduction of disease risk and to children’s development and health and amending Regulation (EU) No 432/2012. http://eurlex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2013:235:0003:0007:EN:PDF. Accessed Sept. 3, 2013.
- Dubois M, Dubat A, and Launay B. The AlveoConsistograph handbook. 2nd ed. American Association of Cereal Chemists, St. Paul, MN (2008)Google Scholar
- ISO, ISO 8585-1. Assessor for Sensory Analysis. Part 1. Guide to the Selection, Training and Monitoring of the Selected Assessors. International Organisation for Standardization, Geneva (1994)Google Scholar
- ISO, ISO 8585-2. Assessor for Sensory Analysis. Part 2. Guide to the Selection, Training and Monitoring of Experts. International Organisation for Standardization, Geneva (1994)Google Scholar
- ISO ISO 13299:2006. Sensory Analysis. Methodology. General Guidance for Establishing a Sensory Profile. International Organisation for Standardisation, Geneva (2016)Google Scholar
- Minervini F, Di Cagno R, Lattanzi A, De Angelis M, Antonielli L, Cardinali G, Cappelle S, Gobbetti M. Lactic acid bacterium and yeast microbiotas of 19 sourdoughs used for traditional/typical Italian breads: interactions between ingredients and microbial species diversity. Appl. Environ. Microbiol. 78: 1251–1264 (2012)CrossRefGoogle Scholar
- Namiki M. Chemistry of maillard reactions: recent studies on the browning reaction. Mechanism and the development of antioxidants and mutagens. Adv. Food Res. 32: 116–170 (1988)Google Scholar
- Siljeström M, Bjorck I, Eliasson AC, Lonner C, Nyman M, Asp NG. Effects of polysaccharides during baking and storage of bread. In vivo and in vitro studies. Cereal Chem. 65: 1–8 (1988)Google Scholar