Fluctuation of chemical composition of the exporting Thai cassava root products at the seaports [from 1975 to 1980, Thailand].
1982
Sarote Khajarern | Jowaman Khajarern
Secondary data on chemical analyses of 11,458 cassava samples being loaded at the seaports from 1980 were statistically analysed. Monthly fluctuation of moisture, crude fibre, sand and starch contents of the products were monitored. Regression and correlation analyses between selling price and each component were conducted on yearly, periodically and overall basis. The quality of exported products was essentially consistent; however, there were slight increasing trends of moisture, crude fibre sand from 1975 to 1980. Selling prices both in Bangkok and Rotterdam always negatively correlate with the nutritive quality of exported products. Yearly fluctuation in the product quality was significantly influenced by selling price; however, this fluctuated within the context of the exporting standards. Khon Kaen pellet tends to contain less crude fibre but more sand than the export products. Up to this point, it is clearly demonstrated that the Thai export standard is too loose enabling the processor to admix the products with other cheap, weight-holding materials. Finally, the data indicate that there have been no appreciable improvement of the export products in the past 6 years.
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