The present disclosure provides low trans-fatty acid fat compositions, methods of hydrogenating unsaturated feedstocks, and hydrogenation catalyst compositions. Preliminary experiments indicate that the increase in metabolism of plants efficiently fosters the reduction of the development of the pathogenic phytobacteria, Erwinia carotovora, one of the principal agents in causing diseases in potatoes. Alternatively, in instances when each rotation angle is computed based on a bit error rate criterion, each value \u03b8f may also be computed based on a signal noise power level. The woven fabric plies are additionally joined to one another at points inside of the edge. A second type of modification consists of adopting one or two aspherical surfaces of particular shape.