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排序方式: 共有196条查询结果,搜索用时 15 毫秒
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《Food and Bioproducts Processing》2014,92(1):38-45
This research intends to verify the effect of Lactobacillus paracasei Fn032 fermentation and heat-moisture treatment (HMT) on the physicochemical properties of foxtail millet (Setaria italica) flour. The results obtained showed a significant (P < 0.05) increase in protein content (12.02–20.54%), total starch (15.78–51.01%) and starch fractions after fermentation and HMT. Differential scanning calorimetry (DSC) analysis showed high decomposition temperature (Td) trend of 180.59 and 189.82 °C after HMT. However, there was significant (P < 0.05) enthalpy (ΔH) decrease. Flour digestion resulted in variation of slow digestible starch (SDS) and resistant starch (RS) count from 6.83 to 18.42% and 7.61 to 22.68% respectively, after fermentation and HTM. Following this observation, it was ascertained that in X-ray diffraction; pasting viscosity and fluorescence spectrophotometry show greater HMT influenced on the flour components. Findings from the scanning electron microscopy (SEM) analysis showed microstructure differences of the flours samples. Fermentation and heat moisture treatment methods present a possible way of changing or improving the physicochemical properties and add nutritional value to foxtail millet meal. 相似文献
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对6种黑龙江主栽小米的糊化特性、质构特性、营养品质和感官品质等品质特性及其相关性进行了研究。研究结果表明:6个品种的直链淀粉质量分数在14.56%~19.72%之间,主要为低直链淀粉;粗蛋白质质量分数在9.27%~11.88%之间;粗脂肪质量分数在2.63%~3.83%之间。直链淀粉含量与小米粉的黏着性呈正相关;支链淀粉、直链淀粉及粗淀粉含量与糊化时间和糊化温度呈负相关,与其他糊化特性呈正相关。质构特性与支直比、粗脂肪含量、粗蛋白质含量呈负相关,与其他营养成分含量呈正相关。支直比、粗脂肪及粗蛋白质含量与米粥的感官指标呈正相关;小米粥的感官评分与糊化时间和糊化温度呈正相关,与其他糊化指标呈负相关;小米粥各感官指标与质构特性呈负相关。因此,小米的品质特性之间存在着一定的相关性。 相似文献
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The physicochemical properties and in vitro digestibility of selected cereals,tubers and legumes grown in China 总被引:1,自引:0,他引:1
Digestibility, gelatinization, retrogradation and pasting properties of starch in various cereal, tuber and legume flours were determined. Rapidly and slowly digestible starch and resistant starch were present in 11 selected flours. In general, cereal starches were more digestible than legume starches and tuber starches contained a high amount of resistant starch. Thermal and rheological properties of flours were different depending on the crop source. 相似文献
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Finger millet seed coat is an edible material and contains good proportion of dietary fibre, minerals and phytochemicals. The seed coat matter (SCM) forms a by-product of millet milling, malting and decortication industries and can be utilised as composite flour in biscuit preparation. The SCM from native, malted and hydrothermally treated millet contained 9.5–12% protein, 2.6–3.7% fat and 40–48% dietary fibre, besides 3–5% polyphenols and 700–860 mg/100 g of calcium. The biscuits prepared using the composite flour were of crisp texture and exhibited breaking strength of 1480–1690 g compared to control biscuits (1560 g). The biscuits were of mild grey colour (ΔE = 40–50) and exhibited higher protein, dietary fibre and calcium contents. The sensory evaluation of the biscuits indicated that 10% of SCM from native and hydrothermally processed millet and 20% from malted millet could be used in composite biscuit flour. 相似文献
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The physicochemical properties of brewer’s spent grain (BSG) and apple pomace (AP), and their effect on dough rheological properties were investigated. BSG had high protein content and both by-products were found to be high in dietary fibre. The rheological and the pasting properties of dough were significantly altered by the addition of by-products, with the main effects being due to the presence of dietary fibre. The biaxial extensional viscosity was significantly higher for the supplemented doughs; the strain hardening index decreased with increasing the levels of flour substitution. The replacement of wheat flour with the by-products significantly reduced the uniaxial extensibility, while the storage modulus, G″, was found to increase, indicating changes in the structural properties of dough. These changes were reflected in the ability of dough to rise during proofing. 相似文献
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Kategunya Rengsutthi 《LWT》2011,44(5):1309-1313
This study investigates the possible utilization of starch extracted from jackfruit seed waste from the jackfruit frying industry. We first compared the physico-chemical properties of jackfruit seed starch (JFSS) with cornstarch (CS) and potato starch (PS) and then compared JFSS with CS as a thickener and stabilizer in chilli sauce. JFSS had a higher amylose content and its granules were much smaller than CS and PS granules; in addition, JFSS had a higher pasting temperature and final viscosity than CS and PS. JFSS experienced lower breakdown than CS and PS pastes which indicates that JFSS paste is more resistant to thermal and mechanical shear during cooking. The XRD patterns showed JFSS to be Type A starch, similar to corn starch. JFSS is suitable as a thickener and stabilizer in chilli sauce because chilli sauce with JFSS had the lowest serum separation and highest viscosity during storage compared with control chilli sauce and sauce containing CS. In addition, sensory evaluation demonstrated that chilli sauce containing JFSS received the highest score in terms of color, mouth feel, homogeneity and overall quality. 相似文献
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