Abstract
Color and taste are permanent features of amala, a traditional thick paste obtained from yam chips flour. To assess these attributes, 23 yam chips presenting various quality attributes were processed. The sensory attributes of their derived amala were determined and some biochemical characteristics of yam flours measured. A panel defined five main taste attributes for amala: sweetness, bitterness, acidity, fermented, and roasted tastes. Amala color was measured instrumentally and sensory scores were highly correlated with flour biochemical analyses; amala sweetness was positively correlated with glucose and fructose content of the flour, whereas amala acidity and fermented taste were linked to organic acids and lactic acid contents of flour, respectively. In addition, darkness, bitterness, and roasted tastes of amala could be tightly predicted by multiple regression analysis from phenolic compound and glucose–fructose contents. Phenolic content of yam flour plays thus a key role on sensorial quality of amala. However, polyphenol oxidase and peroxidase activities were almost null in yam flours and their specific role on yam flour phenolic content needs to be clarified.
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References
Mozie O (1988) Effect of storage temperature on storage weight losses in white yam (Dioscorea rotundata Poir) tubers. Trop Sci 28: 273–276.
Girardin O, Nindjin C, Farah Z, Escher F, Stamp P, Otokoré D (1998) Use of gibberellic acid to prolong dormancy and reduce losses during traditional storage of yams. J Sci Food Agric 77: 172–178.
Akissoé N, Hounhouigan DJ, Bricas N, Vernier P, Nago CM, Olorunda A (2001) Physical, chemical and sensory evaluation of dried yam (Dioscorea rotundata) tubers, flour, and “amala” a flour-derived product. Trop Sci 41: 151–155.
Chilaka FC, Eze S, Anyadiegwu C, Uvere P (2002) Browning in processed yams: Peroxidase or polyphenol oxidase? J Sci Food Agric 82: 899–903.
Vernier P, Dossou RA, Letourmy P (1999) Processing yam chips from Dioscorea alata: Effect of the variety and chip size on drying, storage ability and sensorial properties. Afr J Root Tuber Crops 3: 62–68.
Bricas N, Vernier P, Ategbo E, Hounhouigan J, Mitchikpe E, N’kpenu KE, Orkwor G (1997) The expansion of yam chip food subsector in West Africa. Cah recherche Dév 44: 100–114.
Osagie AU, Opoku AR (1984) Enzymatic browning of yams (Dioscorea species). Niger J Biochem 25–29.
Almenteros VP, Del Rosario RR (1985) Phenolic content and polyphenoloxidase activity related to browning in yam (Dioscorea alata Linn.). Philipp Agric 68: 449–452.
Rasper V, Coursey DG (1967) Anthocyanins of Dioscorea alata L. Experientia 23: 611–612.
Imbert MP, Seaforth C (1968) Anthocyanins in Dioscorea alata L. Experientia 24: 447–449.
Ozo ON, Caygill JC, Coursey DG (1984) Phenolics of five yam (Dioscorea) species. Phytochemistry 23: 329–331.
Onayemi O, Idowu A (1988) Physical and chemical changes in traditionally stored yam tubers (Dioscorea rotundata Poir and Dioscorea cayenensis Lam). J Sci Food Agric 36: 588–591.
Martin FW, Ruberté R (1975) Bitterness of Dioscorea Cayenensis. J Agric Food Chem 23: 1218–1219.
Adamson I, Abigor R (1980) Transformation associated with catecholase in Dioscorea alata during storage. Phytochemistry 19: 1593–1595.
Ikediobi CO, Chelvaran RL, Ukoha AI (1989) Biochemical aspects of wound healing in yams (Dioscorea spp). J Sci Food Agric 48: 131–139.
Omidiji O, Okzupor J (1996) Time course of PPO-related browning. J Sci Food Agric 70: 190–196.
Izundu AI (1995) Peroxidase activity and inhibition of browning reaction in Dioscorea dumetorum tubers. J Root Crops 21: 12–16.
Rousset S, Pons B, Pilandon C (1995) Sensory texture profile, grain physico-chemical characteristics and instrumental measurements of cooked rice. J Texture Stud 26: 119–135.
Rousset S, Pons B, Martin J-M (1999) Identifying objective characteristics that predict clusters produced by sensory attributes in cooked rice. J Texture Stud 30: 50–532.
Issanchou S (1990) The profile of ideal product. In: Sztrygler F (ed), Evaluation sensorielle: Manuel méthodologique. Paris: Lavoisier, pp 195–205.
Hounhouigan DJ, Nout MJR, Nago CM, Houben JH, Rombouts FM (1993) Composition and microbiological attributes of mawé, a fermented maize dough from Benin. Int J Food Sci Technol 28: 513–517.
Nago M, Tétégan E, Matencio F, Mestres C (1998) Effects of maize type and fermentation conditions on the quality of Beninese traditional ogi, a fermented maize slurry. J Cereal Sci 28: 215–222.
Swain T, Hillis WE (1959) The phenolics constituents of prunus domestica. I: The quantitative analysis of phenolic compounds. J Sci Food Agric 10: 63–68.
Achi OK, Akubor PI (2000) Microbiological characterization of yam fermentation for “Elubo” (yam flour) production. World J Microbiol Biotechnol 16: 3–7.
Wanasundera JPD, Ravindran G (1994) Nutritional assessment of yam (Dioscorea alata) tubers. Plant Food Hum Nutr 46: 33–39.
Wanasundera JPD, Ravindran G (1992) Effects of cooking on the nutrient and antinutrient contents of yam tubers (Dioscorea alata and Dioscorea esculenta). Food Chem 45: 247–250.
Asemota HN, Wellington MA, Odutuga AA, Ahmad MH (1992) Effect of short-term storage on phenolic content, o-diphenolase and peroxidase activities of cut yam tubers (Dioscorea sp). J Sci Food Agric 60: 309–312.
Muzac-Tucker I, Asemota HN, Ahmad MH (1993) Biochemical composition and storage of Jamaican yams (Dioscorea sp). J Sci Food Agric 62: 219–224.
Ozo ON, Caygill JC (1985) Some characteristics and a comparison of the activities of o-dihydroxyphenoloxidase from five yam (Dioscorea spp.) species. J Sci Food Agric 36: 973–979.
Ikediobi CO, Obasuyi HN (1982) Purification and properties of o-diphenolase from white yam tubers. Phytochemistry 21: 2815–2820.
Nago M, Hounhouigan J, Akissoé N, Zanou E, Mestres C (1998) Characterization of the Beninese traditional ogi, a fermented maize slurry: Physico-chemical and microbiological aspects. Int J Food Sci Technol 33: 307–315.
Martin FW, Ruberte R (1976) The polyphenol of dioscorea alata (Yam) tubers associated with oxidative browning. J Agric Food Chem 24: 67–70.
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MESTRES, C., DORTHE, S., AKISSOÉ, N. et al. Prediction of Sensorial Properties (Color and Taste) of Amala, a Paste From Yam Chips Flour of West Africa, Through Flour Biochemical Properties. Plant Foods Hum Nutr 59, 93–99 (2004). https://doi.org/10.1007/s11130-004-0028-z
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DOI: https://doi.org/10.1007/s11130-004-0028-z