Biochemistry
Table 3: Most promising lines with higher starch content
Table 4: Most promising lines with higher amylopectin in starch
S. No.
Pedigree
S. No.
1.
HM 11
73.03
2.
JM 12
73.13
3.
HKI 164-4(1-3)
73.33
4.
HM 9
5.
Starch (%)
Pedigree
Amylopectin in starch (%)
1.
PANCHAGANGA
65.08
73.59
2.
PRATAP MAKKA 4 (EC-1108)
66.56
HKH 414
73.80
3.
VIVEK MAIZE HYBRID 5
67.98
6.
HKH 319
73.97
7.
VIVEK MAIZE HYBRID 25
74.04
4.
VIVEK MAIZE HYBRID 27
69.02
8.
HKH 322
74.09
5.
PRATAP HYBRID MAIZE 1
71.05
9.
JM 8
74.10
10.
HKI 325-17AN
74.20
11.
HKI 325-17ANER-3
74.32
12.
1128*161
74.79
13.
HKH 317
74.99
(EH-50802)
corn having more than 60% amylose is called high amylose maize. A total of 71 different germplasm were analyzed for starch, amylose in starch and amylopectin in starch. The values of amylose in starch varied from 23.51 to 55.20 per cent with lowest and highest values being observed in the genotypes VIVEK MAIZE HYBRID 33 and VL MAKKA 54, respectively. Amylopectin content in starch ranges from 44.98 (VL MAKKA 54) to 76.49 (VIVEK MAIZE HYBRID 33) per cent. Nine most promising lines selected for amylopectin in starch are mentioned in Table 4. Oil Content Oil is an important by-product of maize industry. Due to its better quality and cholesterol lowering benefits, corn oil is highly appreciated by the urban population. The oil content of maize kernel comes mainly from the germ. It has low levels of saturated
25
6.
VIVEK MAIZE HYBRID 43
71.21
7.
PRATAP MAKKA 5 (EC-3116)
72.90
8.
PRATAP MAKKA CHARI 6
9.
(EC-3135)
75.49
VIVEK MAIZE HYBRID 33
76.49
fatty acid i.e. on an average 11 per cent palmitic and 2 per cent stearic acid. On the other hand it contains high levels of PUFA, mainly linoleic acid with an average value of about 24 per cent. Maize oil is relatively stable since it contains high levels of natural antioxidants. Because of these qualities, oil has become by far the most valuable product of maize industry. Earlier germ containing oil were considered to be a waste product in glucose factories and corn mills, however, nowadays there is a great demand for high oil corn by these industries. Maize oil is highly regarded because of its fatty acid distribution, mainly oleic and linoleic acids. In this respect, populations that consume degermed maize benefit less in terms of oil and fatty acids than populations that consume whole-kernel products. Therefore, breeding