Quality Assessment of Corn Silage
Quality assessment with the help of EST's zNose. To know more about on food and beverage solutions, visit: http://bit.ly/2c2q0WX The following infograph gives a detailed description on quality assessment of Corn Silage.Corn kernels containing any amount of mold are considered damaged. Molds and fungus produce odors which contain microbial volatile organic compounds (MVOC) which are perceived by humans as musty smells. Five different samples of sour corn kernels, moldy corn, good corn were evaluated using zNose for quality assessment of corn silage. Approximately 5 gm of corn were placed into a vial and sealed with a septa lid. The vials were kept at a temperature for 5 minutes before measuring the chemicals within the headspace. Vapors were sampled using a side-ported sampling needle to pierce the septa of each vial. Sour samples of corn had a very high lactic acid concentration. It is believed to be isoborneol which has a musty odor. Moldy corn samples had a mild concentration count. It is believed to be either indole or undecanal which have pungent odors. Isoborneol, a musty odor, was also present (peak H) but at a much lower concentration count. Only small traces of lactic acid were detected in the good corn samples. Concentration counts were low in both samples. Later a comparison of Chromatograms of all Five Corn Samples had taken place. Even a comparison of Olfactory Images of all Five Corn Samples was also done.
