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Keywords = parboiled wheat

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10 pages, 572 KB  
Article
Physiochemical Quality and Sensory Characteristics of koji Made with Soybean, Rice, and Wheat for Commercial doenjang Production
by Hyun Hee Hong and Mina K. Kim
Foods 2020, 9(8), 975; https://doi.org/10.3390/foods9080975 - 23 Jul 2020
Cited by 29 | Viewed by 5772
Abstract
The purpose of this study was to compare the physiochemical quality characteristics and sensory profiles of three types of koji: soybean, rice, and wheat koji. Koji is made by inoculating Aspergillus oryzae following the standard method of manufacturing. The physiochemical characteristic [...] Read more.
The purpose of this study was to compare the physiochemical quality characteristics and sensory profiles of three types of koji: soybean, rice, and wheat koji. Koji is made by inoculating Aspergillus oryzae following the standard method of manufacturing. The physiochemical characteristic and sensory profiles were performed after fermenting samples of koji for a 72 h period. The physiochemical quality characteristics that were tested include pH, moisture content, color, acidity, TA, amino-type nitrogen content, reducing- and total-sugar content, and alcohol content; the enzymatic activities that were tested include amylase (α- and β-) and protease (neutral and acidic) activities. A descriptive sensory analysis was conducted on three types of koji with a highly trained sensory panel (n = 7) using the SpectrumTM Method. Differences in physiochemical and sensory profiles were observed on three koji samples (p < 0.05). Soybean koji had higher values in acid and TA, while rice koji had the highest values in reducing and total sugar, at 90.3 mg/g and 107.5 mg/g respectively. Wheat koji had the lowest values in protease activities. The flavor profile of soybean koji was characterized by bean sprout, cracker, and cheonggukjang aromatics; that of rice koji was characterized by overripe banana, solvent, syrup, and parboiled rice aromatics; and that of wheat koji was characterized by woody and roasted aromatics. Full article
(This article belongs to the Special Issue Sensory Evaluation and Flavor Analysis of Foods)
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14 pages, 1552 KB  
Article
Fortified Blended Food Base: Effect of Co-Fermentation Time on Composition, Phytic Acid Content and Reconstitution Properties
by Ashwini V. Shevade, Yvonne C. O’Callaghan, Nora M. O’Brien, Tom P. O’Connor and Timothy P. Guinee
Foods 2019, 8(9), 388; https://doi.org/10.3390/foods8090388 - 3 Sep 2019
Cited by 2 | Viewed by 5233
Abstract
Dehydrated blends of dairy-cereal combine the functional and nutritional properties of two major food groups. Fortified blended food base (FBFB) was prepared by blending fermented milk with parboiled wheat, co-fermenting the blend at 35 °C, shelf-drying and milling. Increasing co-fermentation time from 0 [...] Read more.
Dehydrated blends of dairy-cereal combine the functional and nutritional properties of two major food groups. Fortified blended food base (FBFB) was prepared by blending fermented milk with parboiled wheat, co-fermenting the blend at 35 °C, shelf-drying and milling. Increasing co-fermentation time from 0 to 72 h resulted in powder with lower lactose, phytic acid and pH, and higher contents of lactic acid and galactose. Simultaneously, the pasting viscosity of the reconstituted base (16.7%, w/w, total solids) and its yield stress (σ0), consistency index (K) and viscosity on shearing decreased significantly. The changes in some characteristics (pH, phytic acid, η120) were essentially complete after 24 h co-fermentation while others (lactose, galactose and lactic acid, pasting viscosities, flowability) proceeded more gradually over 72 h. The reduction in phytic acid varied from 40 to 58% depending on the pH of the fermented milk prior to blending with the parboiled cereal. The reduction in phytic acid content of milk (fermented milk)-cereal blends with co-fermentation time is nutritionally desirable as it is conducive to an enhanced bioavailability of elements, such as Ca, Mg, Fe and Zn in milk-cereal blends, and is especially important where such blends serve as a base for fortified-blended foods supplied to food-insecure regions. Full article
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16 pages, 2867 KB  
Article
The Proportion of Fermented Milk in Dehydrated Fermented Milk–Parboiled Wheat Composites Significantly Affects Their Composition, Pasting Behaviour, and Flow Properties on Reconstitution
by Ashwini V. Shevade, Yvonne C. O’Callaghan, Nora M. O’Brien, Tom P. O’Connor and Timothy P. Guinee
Foods 2018, 7(7), 113; https://doi.org/10.3390/foods7070113 - 14 Jul 2018
Cited by 8 | Viewed by 8098
Abstract
Dairy and cereal are frequently combined to create composite foods with enhanced nutritional benefits. Dehydrated fermented milk–wheat composites (FMWC) were prepared by blending fermented milk (FM) and parboiled wheat (W), incubating at 35 °C for 24 h, drying at 46 °C for 48 [...] Read more.
Dairy and cereal are frequently combined to create composite foods with enhanced nutritional benefits. Dehydrated fermented milk–wheat composites (FMWC) were prepared by blending fermented milk (FM) and parboiled wheat (W), incubating at 35 °C for 24 h, drying at 46 °C for 48 h, and milling to 1 mm. Increasing the weight ratio of FM to W from 1.5 to 4.0 resulted in reductions in total solids (from 96 to 92%) and starch (from 52 to 39%), and increases in protein (15.2–18.9%), fat (3.7–5.9%), lactose (6.4–11.4%), and lactic acid (2.7–4.2%). FMWC need to be reconstituted prior to consumption. The water-holding capacity, pasting viscosity, and setback viscosity of the reconstituted FMWC (16.7% total solids) decreased with the ratio of FM to W. The reconstituted FMWC exhibited pseudoplastic flow behaviour on shearing from 18 to 120 s−1. Increasing the FM:W ratio coincided with a lower yield stress, consistency index, and viscosity at 120 s−1. The results demonstrate the critical impact of the FM:W ratio on the composition, pasting behavior, and consistency of the reconstituted FMWC. The difference in consistency associated with varying the FM:W ratio is likely to impact on satiety and nutrient value of the FMWCs. Full article
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