Gapat to fic: ripe Heute its emaceraie. colour. ; 
a The neutral resins have~a~ comparatively: dean line point; “a 
and are separated from the mixture of the two resins by means of prc 
_alcohol, at regulated temperature. Ee means. of ultraviolet Jays they 
into the aromatic acid resins. : ? Be 
" The lemon oil obtained from green fruit contains more citral than 
below the surface. The oil rises to the curler and is ‘olarmodeenn The yield: ges 
appears to be unsatisfactory. This method is practised abroad on a small scale. = 
similar one will be found described below. at? 
than by any, except the solvent, process. Under favourable conden: Ssane oF oa 
have been obtained per ton of fruit, in laboratory experiments. This method (seems 
promising, the intermittent feature in charging and discharging of centrifugals 5 Dee it 
principal drawback. 
evidently due to the high percentage of raleeresinee atin retain the sande alter 
evaporation of the oil; furthermore they appear to pieveu gxidation of the terpenes 
) and aldehydes. wa eae 
Ba The peel is also used for the manufacture of alcoholic extracts and ‘tinctures. 
ae Lemon is perhaps. the most widely used flavour in America. It is, therefore, no 
i to be wondered at that 400000 Ibs. of lemon oil are imported annually. In California, — 
unfortunately, the relative planting of oranges to lemons is about five to one. ne 
ae Now as regards the several by-products, oran ge marmelade takes the first ues as 
In America English marmelade, made from Sevilla oranges, is best ‘introduced. 
England the oranges are cleaned, eee and the seeds removed ey, a Bonar ; hi 
Sand Hones a transparent finished product. : ; as 
The softened peel is then cut by palit ne into very fine sired 
24 
After some ‘ime, an Bee 
ae ‘characteristic of slick marmelade is its slight bitterness and | its ‘tar y 
