CHANGING OF BIOCHEMICAL CONTENT OF SOYA GLYCINE MAX AND GLYCINE SOJA WHILE LONG-TERM STORING IN DIFFERENT CONDITIONS

The paper reveals results on studying the influence of conditions and period of storing on biochemical content of cultivated soya grain and wild soya grain in 2007–2012. The soya grain of Sonata variety, Garmoniya variety, Lidiya variety, Dauriya variety and wild KA-1344 variety was stored in laboratory (18–22 ºС and humidity 60–70 %) and warehouse (maximum temperature in summer is +35 ºС, maximum temperature in winter is –33 ºС) in order to reveal changes in protein, oil and their qualitative concentration during 5 years. The data obtained was compared with initial data and the analysis demonstrated that protein and oil concentration was reduced during 5 years. In laboratory concentration of protein was reduced 2.4 % and oil was reduced 0.9 % whereas storage at warehouse demonstrated 2.9 % and 0.1 % correspondently. Garmoniya variety revealed increasing of oil in soya grain on 1–1.7 % and wild soya at the warehouse on 2.3 %. Concentration of essential aminoacids while storing at the warehouse and in laboratory was reduced: alanine concentration was reduced on 21–22 %, lysine was reduced on 17 %, arginine concentration was reduced on 15 %, leucine was reduced on 10 % and isoleucine on 18–19 % whereas concentration of phenylalanyl and valine was reduced on 33 % and 17–18 % correspondently. The paper points out that share of oleinic acid is reduced in soya grain whereas linoleic acid is increased in all the varieties studied. Soya grain stored at the warehouse contains high polyunsaturated fatty acids (linoleic acid and octadecatrienoic acid); therefore,  laboratory storing is more favourable for storing soya grain in order to use it in processing industry.

1. Vavilov P. P., Posypanov G. S. Bobovye kul’tury i problema rastitel’nogo belka. Moscow: Rossel’khozizdat, 1983. 256 p.

2. Drushlyag N. G. Izmeneniya fiziologo-biokhimicheskikh kharakteristik semyan gorokha (Pisum sativum L.) pri khranenii i obrabotke fitogormonami [dis. … kand. biol. nauk]. Voronezh, 2009. 115 p.

3. Krasnook N. P., Povarova R. I., Vishnyakova I. A., Shutova E. A. Izmenenie biokhimicheskikh pokazateley v zernovke risa pri potere zhiznesposobnosti [Izv. vuzov SSSR. Pishch. tekhnologiya], no. 2 (1975): 28–30.

4. Kretovich V. L. Fiziologo-biokhimicheskie osnovy khraneniya zerna. Moscow; Leningrad: Izd-vo AN SSSR, 1945. p. 136.

5. Kroker V., Barton L. Fiziologiya semyan. Moscow: Inostr. lit., 1955.

6. Dospekhov B. A. Metodika polevogo opyta. Moscow: Agropromizdat, 1985. 351 p.

7. Petibskaya V. S., Nazarenko S. V., Baranov V. F. i dr. Vliyanie biologicheskikh osobennostey sorta i usloviy vyrashchivaniya soi na biokhimicheskiy sostav semyan [Izv. vuzov. Pishch. tekhnologiya], no. 4 (2000): 14–18.

8. Shcherbakov V. G. Biokhimiya i tovarovedenie maslichnogo syr’ya. Moscow: Pishch. prom-st’, 1979. 336 p.

9. Trisvyatskiy L. A., Mel’nik B. E. Tekhnologiya priema, obrabotki, khraneniya zerna i produktov ego pererabotki. Moscow: Kolos, 1983. 351 p.

10. Karpov B. A. Tekhnologiya posleuborochnoy obrabotki i khraneniya zerna. Moscow: Agropromizdat, 1987. 288 p.