Aging occurs when a person reaches a certain level of physical development. can change. In old age, this is the last person, who gradually degenerates physically, mentally and socially. Persistent hypertension in the arteries, with a systolic blood pressure above 140 mm Hg and a diastolic blood pressure above 90 mm Hg. The incidence of arterial hypertension increases every year. Hypertension is the most dangerous disease in the world. High blood pressure in the long term can damage various organs in the body, such as the kidneys, heart and brain. This happens if you have high blood pressure and are handled properly as soon as possible. This activity was held in Deli Tua, Deli Serdang in September 2022. All the elderly who attended this activity experienced an increase in knowledge regarding the utilization of pineapple skin waste which can be reused into tea which is beneficial for the elderly who specifically suffer from hypertension.
The garbage problem is a very important problem because it has the potential to damage the balance of the environmental ecosystem. Many studies have been carried out on the content of active compounds in grapefruit peel, but there are differences in sampling locations, types of solvents for extraction, differences in treatment and testing. In the discovery of Eco-enzyme fermentation solution product, Dr. Rosukon Poompanvong to help local farmers to obtain better yields while being friendly to the environment. Eco-Enzyme is a popular fermented fruit peel organic waste which has been developed because it is very practical, economical, and environmentally friendly. Utilization of fruit peels into Eco-Enzyme is an evolution of science in the health sector. This study aims to determine the Eco-Enzyme fermentation process from pomelo peel and Eco-Enzyme acetic acid levels and their potential as antioxidants with experimental research using Eco-Enzyme sample solution with FeCl3 solution as a qualitative test indicator for Eco-Enzyme samples. Quantitative test using 1-2 drops of Eco-Enzyme sample solution 0,1 M NaOH standard solution and phenolphthalein indicator solution in alkalimetric titration and DPPH method with DPPH solution using UV-Vis spectrophotometer. From the results of qualitative research, the results of Eco-Enzyme fermentation are in the form of a light brown solution, have a brick red precipitate, and there is a brick red precipitate. The results of quantitative research on alkalimetric titration of Eco-Enzyme fermentation, there is an acetic acid level of 7.5% per one gram of pomelo peel, and the DPPH method on the fermented Eco-Enyme solution with an IC50 value of 9.418075752 ppm, which means it has very strong antioxidant potential. Eco-enzyme sample solution has acetic acid level of 7,5% per one gram of pomelo peel and has very strong antioxidant potential
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