dc.contributor.advisor | Rusmarilin, Herla | |
dc.contributor.advisor | Kaban, Jamaran | |
dc.contributor.author | Tambunan, Rolina Zahhara | |
dc.date.accessioned | 2021-07-12T06:01:41Z | |
dc.date.available | 2021-07-12T06:01:41Z | |
dc.date.issued | 2015 | |
dc.identifier.uri | http://repositori.usu.ac.id/handle/123456789/35508 | |
dc.description.abstract | The fruit of tomato (Solanum lycopersicum Lycopersicum esculentum SYN.) plant from Solanaceae family that originated, has a content of vitamins A and C as well as antioxidant compounds that are good for health especially lycopene. Lycopene is a carotenoid compounds found in red yellowish vegetables and fruits. The use of natural materials as chemo preventive agent becomes an alternative to reduce cancer patients number in the world. The chemo preventive agents that have been scrutinized was antioxidant-rich tomato juice using lime juice as preservative, applied on rats which had been induced by carcinogens i.e Acrylamide compounds that can cause cancer. Analysis of antioxidant activity is done by observing the effect of lycopene antioxidant-rich tomato juice on rat liver histopathology using hematoxylin eosin staining method and influence of the Cu-Zn SOD enzyme (Cupper Zink-superoxide Dismutase) using immunohistochemistry staining.
Lycopene antioxidant content of fresh tomato was obtained 64,2582 mg/Kg at the wavelength 503 nm with an incubation time of 30 minutes. Lycopene levels before pasteurization was 74,8454 mg/Kg. The higher addition of lime juice concentration, the higher of tomato juice acid, the higher level of ascorbic acid for 3 weeks was 110,6520 mg/100 g with 1% lemon juice. The higher the concentration of lime juice, the lycopene level was increase and the longer the storage time, the levels of lycopene antioxidant was decrease. The best lycopene level was found in the best storage of 2 weeks which was equal to 85,2148 mg/Kg at the preservatives concentration of lemon juice of 1%.
There were some damage fount in the liver cells of positive control group (K+), the first treatment group (P1) and the second treatment group (P2) where each group was given a diet of Acrylamide as a carcinogen compound of 2,0740 mg per day for 11 days. Rat liver lobules photomicrograph of the positive control showed that the rat liver cells had parenchymatous degeneration, binuclear hepatocyte nuclei, cells rupture, core dissolution (caryolysis), cell nucleus enlarges (hypertrophy), hypotrophied Kupffer cell, mononuclear cell infiltration occurred, and ruptured cell or necrosis, as well as the visible presence of bleeding on hepatocyte cells. Liver lobules on negative control group (K-) of rats that was fed with tomato juice rich in lycopene which has a dominant very dark brown color. Exogenous antioxidants of tomatoes lycopene had taken over the function of endogenous antioxidants of SOD as the front line of defense to prevent components damage of cell macromolecule so that SOD endogenous enzyme became more available. | en_US |
dc.description.abstract | Buah tomat (Solanum lycopersicum syn. Lycopersicum esculentum) dari tanaman yang berasal dari keluarga Solanaceae, memiliki kandungan vitamin A dan C serta senyawa antioksidan yang baik untuk kesehatan terutama likopen. Likopen merupakan senyawa karotenoid yang terdapat pada sayuran dan buah-buahan berwarna merah kekuningan. Penggunaan agen kemopreventif dari bahan alam menjadi suatu alternatif mengurangi jumlah penderita kanker di dunia. Agen kemopreventif yang diteliti berupa sari buah tomat kaya antioksidan likopen menggunakan sari jeruk nipis sebagai pengawet, diaplikasikan pada tikus percobaan yang sudah diinduksi bahan karsinogen senyawa Acrylamide yang dapat menginduksi kanker. Analisis aktivitas antioksidan dilakukan dengan mengamati pengaruh sari buah tomat kaya antioksidan likopen pada histopatologi hati tikus dengan metode pewarnaan hematoxylin eosin dan pengaruh enzim Cu.Zn - SOD (Cupper Zink - Superoksida Dismutase) dengan pewarnaan immunohistokimia.
Pada panjang gelombang 503 nm diperoleh rata-rata kandungan antioksidan Lycopene tomat segar sebesar 64,2582 mg/Kg dengan waktu inkubasi 30 menit, sedangkan kadar likopen sebelum pasteurisasi adalah sebesar 74,8454 mg/Kg. Semakin tinggi konsentrasi sari jeruk nipis yang ditambahkan pada sari buah tomat, kadar vitamin C semakin meningkat. Kadar asam askorbat paling tinggi pada penyimpanan 3 minggu adalah 110,6520 mg/100 g dengan konsentrasi pengawet sari jeruk nipis sebesar 1%. Semakin tinggi konsentrasi sari jeruk nipis kadar likopen semakin meningkat dan semakin lama penyimpanan kadar antioksidan likopen semakin menurun. Kadar likopen terbaik terdapat pada penyimpanan 2 minggu yaitu sebesar 85,2148 mg/Kg pada konsentrasi pengawet sari jeruk nipis 1%.
Terdapat beberapa kerusakan pada sel hati untuk kelompok kontrol positif (K+), kelompok perlakuan pertama (P1) dan perlakuan kedua (P2) dimana masing-masing kelompok diberikan diet senyawa karsinogen Acrylamide sebanyak 2,0740 mg per hari selama 11 hari. Fotomikrograf lobulus hati tikus dari kontrol positif menunjukkan sel hati tikus mengalami degenerasi parenkimatosa, sel binuklear, inti hepatosit pecah, inti terdisolusi (karyolisis), inti sel membesar (hipertropi), sel Kupffer terhipotrofi, terjadi infiltrasi sel mononuklear, dan sel pecah atau nekrosis, serta terlihat adanya pendarahan pada sel hepatosit. Lobulus hepar pada kelompok tikus kontrol negatif yaitu tikus yang diberi sari buah tomat kaya likopen memiliki warna coklat tua yang sangat dominan. Antioksidan eksogen likopen tomat mengambil alih fungsi antioksidan endogen SOD sebagai lini pertahanan terdepan untuk mencegah kerusakan komponen makromolekul sel sehingga persediaan enzim endogen SOD menjadi lebih banyak. | en_US |
dc.language.iso | id | en_US |
dc.publisher | Universitas Sumatera Utara | en_US |
dc.subject | Antioksidan Sari Buah Tomat | en_US |
dc.subject | Antioksidan Lycopene | en_US |
dc.subject | Kemopreventif | en_US |
dc.subject | Sari Buah Jeruk Nipis | en_US |
dc.title | Aktivitas Antioksidan Sari Buah Tomat Kaya Antioksidan Lycopene sebagai Agen Kemopreventif Penyakit Kanker Menggunakan Sari Buah Jeruk Nipis (Citrus Aurantifolia) sebagai Pengawet | en_US |
dc.type | Thesis | en_US |
dc.identifier.nim | NIM127051008 | |
dc.description.pages | 164 Halaman | en_US |
dc.description.type | Tesis Magister | en_US |