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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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The purpose of this study is to prepare extruded rice flours suitable for baking rice cookies. The extruded rice flours were prepared at 100 and 130℃ temperature and 25 and 27% moisture content in a co-rotating twin screw extruder. The rice extrudates were dried at 100℃ for 18 h and subsequently ground into the fine flour. Characteristics of the extruded rice flours were examined by rapid visco analysis, hydration property analysis, differential scanning calorimetry(DSC), and in vitro digestion test. Water absorption, solubility, and swelling power of all extruded rice flours were higher than those of native rice flour. DSC analysis showed that native rice flour had a peak at about 65℃ while all extruded rice flours did not show any peaks since they were already gelatinized during the extrusion process. Viscosity of the extruded rice flours decreased with increasing temperature and lowering moisture content in the extrusion process. The extruded rice flours prepared at 130℃ exhibited lower viscosity than those prepared at 100℃. The operating temperature of the extrusion process was critical for the starch digestion in vitro. The extruded rice flours prepared at 130℃ showed a rapid decrease in digestible starch content while an increased level of slowly digestible starch content was observed compared to those treated at 100℃ in the extruder. Cookies were prepared with a mixture of wheat flour and extruded rice flours at the ratio of 7 to 3. The cookies made with the extruded rice flours had lower spread factor and darker yellow color than those prepared with wheat flour only. Hardness of the extruded rice flour-added cookies was similar to that of the wheat flour cookie whereas their overall acceptance was better. Therefore the rice cookies partially supplemented with extruded rice flours may have a potential as early childhood foods which require soft texture and allergy reduction.
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참고문헌 (25)
참고문헌 신청
de la Barca AMC / 2010 / Gluten-free breads and cookies of raw and popped amaranth flours with attractive technological and nutritional qualities / Plant Food Hum. Nutr 65:241~246
Cho SJ / 2001 / Bread property and sensory quality of differently processed rice flour compounded bread / Korean Soc. Comm. Living Sci 12:69~85
Colonna P / 1983 / Macromolecular modifications of manioc starch components by extrusion-cooking with and without lipids / Carbohyd. Polym 3:87~108
Gallagher E / 2004 / Recent advances in the formulation of gluten-free cereal-based products / Trends Food Sci. Tech 15:143~152
Gujral HS / 2003 / Effect of cyclodextrinase on dough rheology and bread quality from rice flour / J. Agr. Food Chem 51:3814~3818
Cho SJ / 2001 / Bread property and sensory quality of differently processed rice flour compounded bread / Korean Soc. Comm. Living Sci 12:69~85
Colonna P / 1983 / Macromolecular modifications of manioc starch components by extrusion-cooking with and without lipids / Carbohyd. Polym 3:87~108
Gallagher E / 2004 / Recent advances in the formulation of gluten-free cereal-based products / Trends Food Sci. Tech 15:143~152
Gujral HS / 2003 / Effect of cyclodextrinase on dough rheology and bread quality from rice flour / J. Agr. Food Chem 51:3814~3818
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