Steam-rendered lard

Chemical Designations - Synonyms Kettle-rendered lard Leaf lard Prime steam lard Chemical Formula Not applicable. 

OILS, EDIBLE LARD Kettle-rendered lard, Leaf lard, Prime steam lard NL 0 i 0 ... 

Lard (Unhydrogenated) is an off white fat obtained by dry or wet (steam) rendering of fresh fatty porcine tissues (cuttings and trimmings) shortly after slaughtering. Rendered Lard may be bleached, or bleached and deodorized. It is soft to semisolid at 21° and melts completely at 42°. 

Antioxidants added before rendering improve the fat stability. Sims and Hilfman (42) studied the stabilization of lard and edible beef fats during pressure steam rendering. Antioxidants tested included butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT), propyl gallate and citric acid combinations, and a mixmre of BHA and BHT. Best results for a given stabihzer level were obtained with the individual phenolics BHA and BHT. Poorer results were obtained with the mixtures in propylene glycol. 

Oils, Edible Lard Kettle-Rendered Lard Leaf Lard Prime Steam Lard ... 

Suet and lard form the body of pomades and that the quality of these latter maybe unexceptionable, the fat material must be perfectly flush, inodorous, and pure. The rendered suet being almost always more or loss deficient in those respects, it must, therefore, be subjected to a purifying process, in order to fit it for use in perfumery. This is done by melting the fat by the heat of a saline ot steam bath, in an enamelled iron vessel, and adding to it, gradually, powdered alum and chloride of sodium, in the proportion of one ounce of the former, and two ounces of the latter, to every fifty pounds of fat undsr treatment. 

Rendering. The rendering process is applied on a large scale to the production of animal fats, such as tallow, lard, bone fat, and whale oil. The fatty tissues are chopped into small pieces and are boiled in steam digesters. The fat is gradually liberated from the cells and floats to the surface of the water, where it is collected by skimming. A similar method is used in the extraction of palm oil from fresh palm fruits. 

Lard produced by wet rendering is known as prime steam lard . Neats foot oil is a low-melting inedible fat... 

Lard from other organs and from the back is rendered using steam. The maximum acid value is 1.0. 

Lard obtained from all the dispersed fat tissues, including the residues left after the recovery of neutral lard, is rendered in an autoclave with steam (120-130 °C). This type of lard has a maximum acid value of 1.5. 

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