41. Newsprint is high in lignin , one of the main structural components of wood. 42. It also turns yellow very quickly because it contains lignin , a ground wood. 43. The Carboniferous trees made extensive use of lignin . 44. Softwood lignin is mainly derived from coniferyl alcohol. 45. The lignin chemical business of Marathon was operated for many years as Marathon Chemicals. 46. Thioglycolysis is an analytical technique for lignin quantitation. 47. Lignin products improve the end-use properties and strengthen the structure of concrete.48. Acidogenic digestate is fibrous and consists of structural plant matter including lignin and cellulose. 49. Wood is made up of cellulose and lignin . 50. All plants contain lignin , hemicellulose and cellulose.
