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STUDI PERBEDAAN PEWARNAAN PREPARAT JARINGAN PEMBULUH TRAKEA PADA BATANG TOMAT (Lycopersicum esculentum) DENGAN METODE MASERASI MENGGUNAKAN EKSTRAK KULIT BUAH NAGA (Hylocereus costaricensis) DAN BERBAGAI PELARUT SEBAGAI SUMBER BELAJAR BIOLOGI

Rasulia, Rafika MIllata (2019) STUDI PERBEDAAN PEWARNAAN PREPARAT JARINGAN PEMBULUH TRAKEA PADA BATANG TOMAT (Lycopersicum esculentum) DENGAN METODE MASERASI MENGGUNAKAN EKSTRAK KULIT BUAH NAGA (Hylocereus costaricensis) DAN BERBAGAI PELARUT SEBAGAI SUMBER BELAJAR BIOLOGI. Bachelors Degree (S1) thesis, University of Muhammadiyah Malang.

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Abstract

Dragon fruit (Hylocereus costarticensis) has the potential as one of the anthocyanin sources that can function as natural dyes, antioxidants, and anticarcinogens. Anthocyanin is a water-soluble pigment responsible for blue, purple, violet, magenta, red and orange. Anthocyanin can be damaged at high temperatures (heating) commonly used in making a number of food products. This study aims to make natural dyes from dragon fruit skin, looking for the effect of solvent ratio on yield and get the best solvent ratio to get the maximum yield. The research was conducted by maseration extraction method (that is simple filtration carried out by soaking dragon fruit skin in 96% ethanol solvent, 10% citric acid solvent, and 96% ethanol + 10% citric acid at room temperature and protected from sunlight). The extraction results were then filtered and concentrated with a rotary vacuum evaporator and then observed using a binocular microscope. The results of anthocyanin extract on dragon fruit skin (Hylocereus costaricensis) were compared with the comparison of safranin wherein the standard was known to be certain anthocyanin content. The best yields obtained in dragon fruit skin extract were using solvent ethanol 96% + 10% citric acid.

Item Type: Thesis (Bachelors Degree (S1))
Student ID: 201210070311019
Thesis Advisors: Sri Wahyuni (0013046202), Iin Hindun (004096401)
Keywords: Dragon fruit skin extract, Anthocyanin, Maseration, Tomato.
Subjects: Q Science > QH Natural history > QH301 Biology
R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
Divisions: Faculty of Teacher Training and Education > Department of Biology Education (84205)
Depositing User: 201210070311019
Date Deposited: 24 Aug 2019 09:35
Last Modified: 26 Aug 2019 01:25
URI : http://eprints.umm.ac.id/id/eprint/52436

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