Background: MSG has become one of the most widely used food flavorings in the world, the FDA (Food and Drug Administration) reported an average per capita intake of MSG in the United States of 550 mg / day in 1973. The use of MSG as a food additive has been regulated by its use. WHO. This rule stipulates that daily consumption of MSG per person should not exceed the safe threshold of 120 mg / kg / day. MSG is proven to be a risk factor for obesity. The increase in body weight in mice occurred after MSG was given as much as 15-30 mg / kg or the equivalent of 1-2 g / person. Based on the description above, it is known that there is a significant influence of MSG in the health sector if consumed in excess. Therefore, researchers are interested in conducting further research related to MSG levels in instant noodle samples in the Semarang city area. Aim: The purpose of this study was to test the MSG levels in instant noodles with a spectrophotometer. Method: The tools used are a UV-Vis spectrophotometer (Shimadzu), NaCl and MSG salts. MSG used in instant noodles, 0.5% Ninhydrin Reagent. Result: MSG levels from each of the 10 samples of instant noodles that are traded in Semarang City, the highest levels are found in sample J of 4.70% and the lowest MSG levels are in sample G of 2.90%. Conclusion: Instant noodles sold in the city of Semarang are positive for Monosodium glutamate (MSG) and The results of quantitative analysis, where the MSG levels contained in each sample of instant noodles in Semarang City show that it is still below the standard for adults.

Trembesi (Samanea saman) merupakan tanaman cepat tumbuh asal Amerika Tengah dan Amerika Selatan Utara, Pohon Trembesi termasuk pohon yang mudah dikenali karena mem punyai kanopi yang berbentuk payung dengan diameter kanopi lebih besar dari tingginya. Penelitian ini bertujuan untuk mengetahui nilai parameter spesifik dan non spesifik pada ekstrak etanol biji buah trembesi. Ekstraksi dengan metode maserasi menggunakan pelarut etanol 70 %. Jenis penelitian deskriptif. Analisis menggunakan univariat dengan menyajikan data yang diperoleh dari perhitungan. Hasil ekstrak didapatkan berat 91 % dengan nilai rendemen yaitu 18,20 %. Parameter spesifik yang dilakukan yaitu identitas, organoleptik, senyawa yang terlarut dalam pelarut tertentu. Parameter spesifik yang dilakukan yaitu susut pengeringan, kadar air, kadar abu, cemaran logam berat. Pada hasil penetapan parameter spesifik dan non spesifik menunjukkan bahwa ekstrak etanol biji buah trembesi pada pengujian organoleptik didapatkan hasil berbentuk kental, warna coklat, bau khas, rasa kelat manis. Senyawa terlarut dalam etanol 51,66 %. Senyawa yang terlarut dalam air 40,00 %. susut pengeringan 7,66 %. Kadar air 5,28 %. Kadar abu total 9,16 %. Kadar abu tidak larut asam 1,83 %. Cemaran logam berat 0,020 mg/L. Hasil dari parameter spesifik dalam penelitian ini memenuhi persyatan.Kata Kunci : Biji trembesi (Samanea saman) 1 , Parameter spesifik 2 , Parameter non spesifik 3