scholarly journals THE ESTIMATION OF THE HYDROGEN CYANIDE CONTENT OF AMYGDALIN BY THE AERATION METHOD

1924 ◽  
Vol 58 (3) ◽  
pp. 667-669
Author(s):  
Joseph H. Roe
2017 ◽  
Vol 11 (11) ◽  
pp. 362-368 ◽  
Author(s):  
A. Akande Samuel ◽  
F. Onyegbula Akudo ◽  
A. Salawu Rukayat ◽  
K. Oladipo Anuoluwapo ◽  
O. Adetunji Charles

2019 ◽  
Vol 8 (3) ◽  
pp. 238
Author(s):  
I Dewa Ayu Bintang Damayanti ◽  
Ni Wayan Wisaniyasa ◽  
I Wayan Rai Widarta

The purpose of this research was to determine the physical, chemical, functional properties, and hydrogen cyanide content of jack bean sprout (Canavalia ensiformis L.) flour. This research used two treatments that was without germination and 48 hours of germination. The treatments were repeated three times resulting in six units of experiments. Jack bean flour and jack bean sprout flour were analyzed by paired T-test. The results showed that the germination of jackbean had a very significant effect on the decrease of oil absorption from 1.59 mg/l to 0.79 mg/l. The treatment had a significant effect on the increase of water content from 11.10% to 11.77%; increase of protein content from 28.52% to 29.18%; decrease of fat content from 6.33% to 5.54%; decrease of carbohydrate content from 51.19% to 50.77%; increase of crude fiber content from 11.69% to 12.30%; increase of water holding capacity from 1.42 ml/g to 1.58 ml/g; decrease of swelling volume from 8.97 ml/g to 8.31 ml/g; increase of solubility from 0.06% to 0.07%; and decrease of hydrogen cyanide content from 14.13 mg/kg to 11.00 mg/kg. This research had no effect on bulk density and ash content.   Keywords       : hydrogen cyanide; jackbean sprout flour; chemical, functional and physical properties


2012 ◽  
Vol 25 (12) ◽  
pp. 1691-1700 ◽  
Author(s):  
Khuc Thi Hue ◽  
Do Thi Thanh Van ◽  
Inger Ledin ◽  
Ewa Wredle ◽  
Eva Sp철rndly

2020 ◽  
Vol 13 (1) ◽  
pp. 32-50
Author(s):  
O. F. Akinyele ◽  
A. V. Ikujenlola ◽  
T. O. Omobuwajo

Abstract The physico-chemical and sensory qualities of pupuru analogues produced from co-fermented cassava and breadfruit blends were investigated. Cassava and breadfruit were processed separately and cofermented at different proportions to produce pupuru and pupuru analogues. Seven different samples were produced with the ratios of 100:0, 90:10, 80:20, 50:50, 20:80, 10:90, and 0:100 cassava:breadfruit respectively. The proximate composition, bulk density, hydrogen cyanide, pH, TTA, and sensory properties of the sample were determined using standard methods. The results showed that the protein (2.86–6.41%), fat (0.43–2.05%), ash (0.36–1.17%), crude fibre (0.68–2.83%), and energy values (393.84 to 399.38 kcal/100 g) increased together with breadfruit substitution. The bulk density, pH, total titratable acidity, and hydrogen cyanide content of the sample was in the ranges of 0.47–0.60 g/ml, 4.30–5.30, 0.18–0.31%, and 0.56–1.68 mg/100 g respectively. The pupuru analogues had lower hydrogen cyanide content than pupuru. The pupuru analogues up to 50% breadfruit substitutions had acceptable sensory attributes, comparable to pupuru. The study concluded that pupuru analogues of acceptable quality can be produced from co-fermented cassava and breadfruit; this entails increasing the utilization of breadfruit.


1979 ◽  
Vol 15 (4) ◽  
pp. 393-400 ◽  
Author(s):  
Hugh J. Williams

SUMMARYMethods are described for releasing HCN from cassava leaves and tubers by organic solvents and its spectrophotometric estimation as the red complex formed with alkaline picrate. Chloroform was the most efficient solvent, with toluene an acceptable alternative, using enough solvent to wet samples thoroughly to maximize cyanide yield. Cyanide content was concentrated in the veins and towards the base of leaves and declined linearly with leaf age. Release of HCN with solvent compared favourably with traditional homogenization/steam distillation with leaves and parenchymal tissue, but was unsatisfactory for tuber peel. The effective removal of HCN from cooked cassava leaves depends chiefly on release of enzymes by efficiently chopping them before boiling, which only slowly destroyed potential cyanide content of unchopped leaves.


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