Government of Bengal Industries Department Bulletin No. 46 Investigation into the application of Rayna (Amoora Rohituka) Oil in Soap-making

The discontnuance of the practice of making oil from the seed has meant much i lloss to the province and to the villager the former in the shape of producible wealth and the latter in the form of remunerative work for a good many villagers used to be provided with part-time occupation in the collection of the seed and expression of the oil. [...] The yield of fruit per tree varies not only with the age and condition of the tree but also with the character of the soil the climatic influences the spacing of the trees in the grove and the cultural attention bestowed on.it. [...] For the expression of the oil in the country ghani or in the various oil presses it is necessary that the moisture of the seed should be completely driven out for the oil expressed from the moist seed is liable.to develop rancidity very quickly. [...] A considerable portion of the colouring matter of the oil is eliminated in the spent lye at the end of the process of salting the lye becoming darbrown and the grained soap assuming a cream colour. [...] The results of our investigation into the subject support the farsightedness of the policy underlying the prohibitory order' issued by the Ikirbar and it may reasonably be txpecied that the said policy will in the near future bring additionalorevenue to the State and also find employment for a large number of its subjects in the collection of the seed and the expression of the oil.