Use of leaf enriching harvesting methods to increase the yield of leaf protein concentrate from lucerne | Zendy

Edwards Richard H. | Zendy; Knuckles Benny E. | Zendy; Miller Raymond E. | Zendy; Currence David H. | Zendy; De Fremery Donald | Zendy; Kohler George O. | Zendy

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Use of leaf enriching harvesting methods to increase the yield of leaf protein concentrate from lucerne

Author(s) -

Edwards Richard H.,

Knuckles Benny E.,

Miller Raymond E.,

Currence David H.,

De Fremery Donald,

Kohler George O.

Publication year - 1979

Publication title -

journal of the science of food and agriculture

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.782

H-Index - 142

eISSN - 1097-0010

pISSN - 0022-5142

DOI - 10.1002/jsfa.2740300603

Subject(s) - tops , forage , agronomy , yield (engineering) , biology , extraction (chemistry) , fraction (chemistry) , chemistry , materials science , chromatography , spinning , polymer chemistry , metallurgy

A prototype leaf stripping machine and a conventional forage harvester with a raised header were used to obtain high protein lucerne (alfalfa) fractions. The stripped lucerne leaves and lucerne tops contained 26.2 and 27.2% protein, respectively. Pilot‐scale extraction of the ground leaves and the ground tops resulted in leaf protein concentrate (LPC) yields of 18.8 and 20.0%, respectively, compared with 12.8 and 15.7% for the appropriate whole lucerne control. LPC yields as high as 27.4% were obtained by the addition of lucerne solubles to the lucerne tops prior to grinding. Low LPC yields (4.0–8.0%) were obtained from the lucerne stem fraction. After processing, the press cake fraction from the leaf‐enriched feed materials still contained over 17% protein.

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