The addition of curcumin with 0.5 % concentration resulted in poly(lactic acid) (PLA) packaging with the best antioxidant and antimicrobial activity was IC50 = 0.83 %. Antimicrobial showed positive inhibiting E. coli and B. cereus bacteria despite weak activity. The study of modified poly(lactic acid) packaging of curcumin in tea drink was better than commercial plastic packaging which carried out for 7 days. Antioxidant activity was IC50 = 4.37-16.36 % on the modified poly(lactic acid) curcumin packaging and antioxidant activity on commercial plastic was IC50 = 4.37-20.21 %. The increasing of total microbial log was lower (2.2-4.39) than commercial plastic (3.24-5.82) and total phenol reduction of 0.5 % was lower than commercial plastic packaging dropped by 0.0625 %.

Telah dilakukan penelitian mengenai pengaruh cara pengeringan terhadap kualitas ekstrak etanol daging buah pala (Myristica fragrans Houtt). Cara-cara pengeringan yang dilakukan adalah pengeringan oven 40oC dan pengeringan langsung di bawah sinar matahari. Hasil uji fitokimia ekstrak daging buah tanaman pala diperoleh bahwa ekstrak daging buah pala mengandung senyawa alkaloid, flavonoid, saponin dan tannin. Analisis kualitas ekstrak etanol daging buah pala (Myristica fragrans Houtt) terdiri dari uji organoleptis, uji kadar air dan uji kadar abu. Dari hasil penelitian diperolah bahwa ekstrak etanol daging buah pala (Myristica fragrans Houtt) dari masing-masing proses pengeringan memiliki ekstrak kental, berwarna cokelat pekat dan bau khas pala. Kadar air daging buah pala dengan metode pengeringan oven sebesar 22,22 % sedangkan dengan metode pengeringan di bawah sinar matahari memiliki kadar air sebesar 3,3 %. Kadar abu daging buah pala dengan metode pengeringan oven sebesar 5,47 % sedangkan dengan metode pengeringan di bawah sinar matahari memiliki kadar abu sebesar 1,77 %.Kata kunci : Myristica fragrans Houtt; pengeringan; kadar air; kadar abu

Betadine Plants leaves were extracted with methanol and carried out by maceration then evaporated with a rotary evaporator. The purpose of this experiment was to determine the composition of chemical compounds contained in the methanol extract of betadine (Jatropha muitifida Linn) leaves by GC-MS. The results of this analysis can be used as a reference in determining the antimicrobial activity of betadine leaves. The results of GC-MS on betadine leaf extract samples detected 27 peaks of compounds, the 3 most dominant compounds were at retention times of 18,072, 19,950 and 20,058, namely 9-Hexadecenoic acid, methyl ester, (Z)-; 7-Hexadecenoic acid, methyl ester, (Z)-; Methyl hexadec-9-enoate; 9,12,15-Octadecatrienoic acid, methyl ester, (Z,Z,Z)-; and Phytol.

Plastic as food packaging can cause environmental and health problem. One solution for this problems is by substitute conventional plastic into biodegradable plastic such as poly(lactic acid) (PLA). To improve the physical and chemical properties of PLA, synthetic antioxidant such as Butyl Hydroxyl Toluene (BHT) and Tert Butyl Hydroxyl Quinon (TBHQ) were added into PLA. The analysis was carried out on the PLA-BHT and PLA-TBHQ packaging and also food simulants before and after storage at different temperature for 10 days. The analysis included visual appearance, antioxidant activity, total phenol and overall migration. Both PLA-BHT and PLA-TBHQ packaging that were incubated at temperature 40°C had larger migration than at 29°C. The antioxidant activity and total phenol of PLA-TBHQ was higher than PLA-BHT and both of them had decreased antioxidant activity and total phenol during storage but the decreased rate at temperature 40°C was higher than at temperature 29°C.

Matoa seed and rind as an antioxidant for humans need to be strengthened by research on the toxicity. One of the toxicity tests is using the Brine Shrimp Lethality Test (BSLT) method. The mortality value was determined using a probit analysis to determine the toxicity value using the Lethal Concentration (LC-50) on the solvent fractions of ethyl acetate, methanol and hexane. The toxicity value (LC-50) of Matoa seed extract in hexane, ethyl acetate and methanol solvents were 153, 90 ppm, 141, 09 ppm and 153.65 ppm. The toxicity value (LC-50) of Matoa rind extract in hexane, ethyl acetate and methanol were 109, 34 ppm, 172, 98 ppm and 139.41 ppm, respectively. All the solvents had bioactive compound which had high toxicity because they have LC50 <1000 ppm . The highest toxicity was found in the rind of the matoa fruit extracted using hexane and methanol solvent with LC50 values 109, 34 ppm and 139.41 ppm, while the hexane extract had the lowest toxicity was 172.98 ppm.