Postharvest studies on potato
1996
Bautista, O.K. | Rocafort, R.F. (Philippines Univ. Los Banos, College, Laguna (Philippines). Postharvest Horticulture Training and Research Center)
Results showed that the rate of respiration of tubers increased with temperature. Exposure of tubers to direct sunlight increased the pulp temperature. Small and medium tubers absorbed solar heat faster than did the large tubers. In another study, it was demonstrated that prolonged exposure of tubers to high temperature (37-41 deg C) not only hastened moisture loss but also increased the incidence of blackheart. Higher incidence and severity of blackheart, as well as faster rate of development of the disorder, were observed on large tubers. Internal gas analysis showed that tuber exposed to higher temperature had higher levels of carbon dioxide and lower levels of oxygen than that of unexposed tubers. All processors use imported pre-processed frozen French fries for their requirements. Ten of 11 processors of crunchy snacks used imported potato products while processors of potato chips and baked potato use locally-produced tubers. Chips manufacturers require the following tuber attributes for processing: at least 2.5 inches in diameter, shallow eyes, firm, free from blemish, pale to pastel yellow flesh, less than or equal to 1.07 specific gravity, 13.37 percent dry matter, greater than 1 percent reducing sugar and greater than 3 percent total sugar
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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