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Abstrak :
ABSTRAK
Hemoroid merupakan pembengkakan vena rektoanal yang menyebabkan peradangan, nyeri, dan pendarahan. Tanaman dengan senyawa fenolik diketahui memperbaiki tonus vena dan antiinflamasi. Daun sirsak mengandung senyawa fenolik, alkaloid, acetogenin dan megastigmanes. Penelitian ini bertujuan untuk memeriksa parameter spesifik, nonspesifik, kadar fenol total, flavonoid total dan antioksidan Ekstrak Etanol Daun Sirsak (EEDS), juga melihat efek EEDS terhadap gambaran histopatologi dan ekspresi COX-2 dan TNFα pada jaringan rektoanal mencit Swiss berusia 20 minggu yang diinduksi dengan kroton oil 12% melalui anus. EEDS dosis 100, 200, dan 400mg/KgBB diberikan peroral selama 7 hari. Hasilnya menunjukkan EEDS memenuhi standar mutu ekstrak spesifik dan nonspesifik, kadar total fenol 22,85% atau 228,5 mgGAE/g ekstrak, kadar total flavonoid 5,36% atau 53,6 mgQE/g ekstrak, dan memiliki aktivitas antioksidan sedang (IC50 123,325 μg/mL). Pemeriksaan histopatologi pada jaringan rektoanal mencit dinilai dengan menskor lesi nekrosis, inflamasi, vasodilatasi, dan oedema yang diwarnai Hematoksilin-Eosin. Pemberian EEDS pada semua dosis menunjukkan perbedaan pada jaringan inflamasi, nekrosis, vasodilatasi dan oedema P<0.00. Sel positif mengekspresikan COX-2 dan TNFα dihitung pada sel epitel terinflamasi. Hasil menunjukkan EEDS dosis 200, 400 mg/KgBB signifikan menurunkan COX-2 P<0,002 dibandingkan dengan kontrol negatif, dan EEDS dosis 100, 200, dan 400 mg/KgBB signifikan menurunkan TNFα P< 0,010 dibandingkan dengan kontrol negatif.

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ABSTRACT
Haemorrhoids are rectoanal swelling that causes inflammation, pain, and bleeding. Plants with phenolic compounds are known to improve venous tone and anti-inflammation. Soursop leaves contain phenolic compounds, alkaloids, acetogenin and megastigmanes. This study aims to examine specific, nonspecific parameters, and total phenol levels, total flavonoids and antioxidants of Soursop Leaf Ethanol Extract (SLEE), also see the effect of SLEE on the histopathological features and expression of COX-2 and TNFα in rectoanal tissue of 20-week Swiss mice that are induced with 12% croton oil through the anus. SLEE doses of 100, 200, and 400mg/Kg were given orally for 7 days. The results show SLEE meets the quality standards of specific and nonspecific extracts, total phenol levels of 22.85% or 228.5 mgGAE/g extracts, total flavonoid levels of 5.36% or 53.6 mgQE/g extracts, and have moderate antioxidant activity (IC50 123,325 μg/mL). Histopathological examination of the rectoanal tissue of mice was assessed by scoring necrotizing, inflammatory, vasodilatation, and oedema lesions hematoxylin-eosin. Administration of SLEE at all doses showed differences in inflammatory tissue, necrosis, vasodilation and oedema P<0.00. Positive cells expressing COX-2 and TNFα were counted on inflammatory epithelial cells. The results showed SLEE dosages of 200, 400 mg/Kg significantly decreased COX-2 P<0.002 compared to negative controls, and SLEE doses of 100, 200, and 400 mg/Kg significantly reduced TNFα P<0.010 compared with negative controls.

Abstrak :
Inhibitor ramah lingkungan saat ini diperlukan untuk mengurangi dampak pencemaran dari inhibitor anorganik. Penelitian ini mempelajari pengaruh injeksi ekstrak daun sirsak dengan pelarut tiga tingkat sebagai inhibitor organik terhadap baja karbon rendah API 5L grade A dalam larutan air terproduksi. Berdasarkan pengujian weight loss dari seluruh sampel uji, sampel 8 hari dengan penambahan inhibitor 2 ml menunjukan nilai efisiensi paling tinggi yakni sebesar 52.62 %. Hasil uji polarisasi dan EIS dengan pelarut tiga tingkat didapatkan pelarut etanol mempunyai nilai efisiensi paling besar: 88.52%, sedangkan pelarut semi polar dan non polar nilai efisiensi nya hampir sama. Data dari EIS menunjukkan tahanan larutan menjadi turun dengan semakin meningkat nya penambahan inhibitor ekstrak daun sirsak. Uji FTIR memperlihatkan bahwa terdapat gugus fungsi dari ekstrak daun sirsak dan senyawa aktif nya adalah tipe polifenol. ......Green inhibitors are now increasingly needed to reduce the adverse environmental impacts of the inorganic inhibitor. This research studied the effects of injection of soursop leaves extract in three-level solvents (polar, semi polar and non polar) as an organic inhibitor for the low-carbon steel API 5L of grade A in produced water solution. Based on weight loss test of the entire sample, the 8 days's sample with addition of 2 ml inhibitor from soupsop leaves extract showed the highest efficiency value which amounted to 52.62%. The polarization and EIS tests for three levels's solvents show that the ethanol solvent (type of polar) has the greatest efficiency values: 88.52%, while the efficiency value of non-polar and semi-polar solvent is almost without difference. EIS data showed that inhibiting power of the solution decreases when the inhibitor of soursop leaves extract is increasingly added. FTIR test showed that there is a functional group in the soursop leaves's extract and the active compound is a kind of polyphenol.