Juliano et al. - 1993 - Grain Quality Evaluation of World Rices

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Africa A frica produced 10.7 million t of rough rice in 1988 (2.2% of world's total). In 1986-88, 13.2 million t of rough rice were available for consumption (FAO 1990a,b). Per capita milled rice consumption in 1986-88 was 15 kg/yr. Benin R ough rice production in Benin was 8,000 t in 1986-88 (FAO 1990b) and per capita milled rice supply was 9 kg/yr (FAO 1990a). Analysis of nine popular and farmers’ field varieties showed mostly intermediate AC, intermediate GT, and hard GC (IITA 1985). The only sample from Benin analyzed at IRRI was long, slendergrained ADNY 11, which had high AC, low GT, and medium GC (Appendix, Table 8). This may not be the typical rice in Benin, based on an IITA survey (IITA 1985). Cameroon T he Republic of Cameroon produced 90,000 t of rough rice in 1989 (FAO 1990b). Annual per capita consumption of milled rice was 6 kg in 1979-81 (FAO 1984) and 10 kg in 1986-88 (FAO 1990a). IR46, planted to more than 10,000 ha, was the most popular variety in northern Cameroon in 1983 (Dalrymple 1986). Tainan 5 predominated near Bamenda. The IITA Genetic Resources Unit reported that of 20 popular rices from farmers’ fields, 17 had high AC, 3 had intermediate AC, 17 had intermediate GT, and most had variable GC (IITA 1985). Only two rices from Cameroon, obtained through the International Network for Genetic Evaluation of Rice (INGER), have been analyzed
Table 8. Protein content and classification of milled rice in Africa based on apparent AC, final GT, and GC. IRRI, 1965- 91. Source Benin Cameroon Egypt Ghana Ivory Coast Liberia Madagascar Nigeria Senegal Sierra Leone Tanzania Togo Zambia Total Sample Protein (%) AC a GT b GC c (no.) Range Mean Wx VL L I H L I HI H S M H 1 - 8.6 0 0 0 0 1 1 0 0 0 0 1 0 2 8-11 9.8 0 0 0 1 1 2 0 0 0 0 0 2 44 5-10 6.7 0 0 29 8 7 42 2 0 0 30 2 9 22 6- 9 7.8 0 0 0 7 15 15 5 2 0 7 6 3 21 6-11 7.9 0 0 5 7 9 4 17 0 0 7 8 6 12 6- 9 7.6 0 0 2 3 7 8 3 0 1 5 5 2 9 5-10 7.5 0 0 1 3 5 8 1 0 0 5 4 0 66 6-11 7.7 0 0 7 16 43 52 9 4 1 15 12 29 11 5-10 7.2 0 0 0 1 10 7 4 0 0 3 1 7 108 5-10 7.0 0 0 9 14 85 38 64 5 0 20 23 53 1 - 8.6 0 0 0 0 1 1 0 0 0 0 0 1 2 8 7.6 0 0 0 1 1 1 1 0 0 1 1 0 1 - 7.4 0 0 0 1 0 0 1 0 0 0 1 0 300 5-11 7.3 0 0 53 62 185 169 117 11 2 93 64 12 a Wx = waxy (0-5.0%), VL = very low (5.1-12.0%). L = low (12.1-20.0%). I = Intermediate (20.1~25.0%), and H = high (>25%). b Indexed by alkali spreading value: L = low (6-7), I = lnterrnediate (4-5), HI = high-Intermediate (3). and H = high (2). c Only samples analyzed from mid-I971 have gel consistency values: S = soft (61-100 mm). M = medium (41-60 mm), and H = hard (25-40 mm).
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Grain Quality Evaluation of World R
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Contents Foreword vii Abstract viii
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Russia 61 Spain 62 Summary 63 Afric
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Abstract P hysicochemical data on p
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Introduction D ata bases are availa
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Table 2. Classification of properti
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(100:2 w/w) using a Labconco or Kin
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Gel consistency Rice flour prepared
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excessive pressure on the load cell
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Asia I n 1989, Asia produced 449.3
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Most Bangladeshi rice varieties are
Page 29 and 30: Cambodia A nnual rough rice product
Page 31 and 32: Type III, high-AC rice, has low wat
Page 33 and 34: Iran T he rough rice production in
Page 35 and 36: The Korean varieties had low-interm
Page 37 and 38: Serendah Kuning had high AC, with e
Page 39 and 40: all had low AC (except for Khaupher
Page 41 and 42: Philippines T he Philippines produc
Page 43 and 44: elatively low AC (Y.C. Teng, Counci
Page 45 and 46: other market samples had low AC, ex
Page 47 and 48: Summary Medium grains predominate i
Page 49 and 50: Grain length and width were negativ
Page 51: Table 6. Protein content and classi
Page 54 and 55: (Dalrymple 1986). A market sample o
Page 56 and 57: ack ( r = 0.89*) and peak viscosity
Page 58 and 59: IRRI analyses confirmed Webb's phys
Page 60 and 61: BraziI A nnual rough rice productio
Page 62 and 63: long, slender grain and translucenc
Page 64 and 65: Rices from Paraguay had mostly high
Page 66 and 67: Venezuela R ough rice production in
Page 69 and 70: Europe E urope produced 2.2 million
Page 72 and 73: France F rance produced 96,000 t of
Page 74 and 75: no aroma. A market sample of short-
Page 76 and 77: low GT, and mainly soft GC (Table 7
Page 78: Summary The japonica type varieties
Page 84 and 85: setback ( r = 0.92**, n = 12) and c
Page 86 and 87: Suakoko 8, well-suited for cultivat
Page 88 and 89: unpubl. data). Protein content was
Page 90 and 91: Sierra Leone R ough rice production
Page 92 and 93: Summary High-AC rices predominate i
Page 94 and 95: Table 9. Classification of O. glabe
Page 96: Table 11. Summary of protein conten
Page 99 and 100: References cited Adewusi A O, Nyant
Page 101 and 102: Juliano B O (1985) Criteria and tes
Page 103 and 104: Acknowledgments The data on propert
Page 105 and 106: France — Laboratoire de Cereales,
Page 107 and 108: Sources of 1990 grain quality infor
Page 109 and 110: Cross reference index of variety na
Page 111 and 112: Acronyms of rice varieties/lines Co
Page 113 and 114: H H H HSC IAC ICA ICTA IET IGP INIA
Page 115 and 116: RP RPW RTN RU S SL SLU SML SPR SR T
Page 117: Appendix Quality characteristics of
Page 121: Date Amy- Alkali Gel Amylograph vis
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Date Amy- Alkali Gel Amylograph vis
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Date Crop analyzed year (mo) (yr) A
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Date Amy- Alkali Gel AMylograph vis
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Crop year Date analyzed (mo) (yr) A
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