식용유지 예. 마가린, 쇼트닝(shortenings), 식용유 (채취, 정제, 보존 c11b, c11c; 수소첨가 c11c3/12) edible oils or fats, e.g. margarines, shortenings, cooking oils (obtaining, refining, preserving c11b, c11c; hydrogenation c11c3/12) 