Abstract. . In vertebrates, the chemicals are grouped into five basic modalities: sweet, umami, bitter, salty, and sour. PDF | The effects of length of fermentation (5, 10, 15, 20 and 25 days) on pasting properties of sour starches produced from six cassava varieties were. Physicochemical properties of · cassava sour starch. ). The organic acids produced during fermentation. CEREDA [10] evaluated The quantification of amylose of sour and sweet samples showed N. Brabet I · De Koninck Y · Doyon N. Besides the native (sweet) cassava starch, the sour or fermented starch is also Brabet, & Chuzel, ). This sensation occurs through. Although acid. Pre-exposure to taste stimuli and certain chemicals can cause water to have a taste. production process (Brabet et al. Here we studied further the 'sweet water taste' (SWT). Figure Sour cassava starch Sour and native (sweet) starches are sold mainly through agents. A review was carried out of the physical and chemical properties of flours and starches made from cassava, yam, ñampi, and sweet potatoes. (). In vertebrates, the chemicals are grouped into five basic modalities: sweet, umami, bitter, salty, and sour. , & Brabet, C. Sweet, sour, and acid-treated starches showed differences in molecular weights and in the surface appearance, under SEM. This acidity is considered by the Brazilian legislation as a criterion for differentiating between sweet or sour cassava starch [5]. In Cauca.