Analisa Kandungan Beta Karoten Pada  Cpo (Crude Palm Oil) Di Pusat Penelitian Kelapa Sawit (Ppks) Medan Menggunakan Spektrofotometri Uv-Vis

Harahap, Irwan Saputra; Wahyuningsih, Puji; Amri, Yulida

doi:10.33059/jq.v2i1.2616

Cited by 3 publications

(3 citation statements)

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“…UV-VIS spectroscopy is an analysis technique that uses a source of ultraviolet electromagnetic radiation and visible light using a spectrophotometer instrument. The principle of the UV-VIS spectrophotometer is an absorption of visible light for ultraviolet with a molecule that can result in the excitation of molecules from low energy levels to higher energy levels (Saputra Harahap et al, 2020). Dual beam spectrometers have various important components including light sources made of xenon lamps, monochromators, beam splitters, detectors made of dual silicon photodiodes, and as many as 6 sampel holders (Dinata, 2019).…”

Section: Resultsmentioning

confidence: 99%

Authentication of Combretum Indicum Varr. B Flower Against Varr. M with Combined Chemometrics of UV-VIS Spectrophotometric

et al. 2022

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Melati belanda flowers have two varieties that look different, namely from the shape of the flowers. The first variety has the shape of an elongated flower and the second variety has the shape of a rounded flower. So that, this difference in the shape of the flower will allow generating different activities. The purpose of this study was to identify the distinctive spectra of these two varieties. The method used is a fingerprint analysis of UV-VIS spectroscopy combined with chemometrics for the identification and authentication of varieties of Melati belanda. The results of the analysis of PLSR Combretum indicum Varr. B against Combretum indicum Varr. M on a spectrum of 218.86-252.54 nm, The first derivatization of RMSEC 2.39; R2 0.9975; RMSEP 6.92; R2 0.9939 and RMSEC 5.63; R2 0.9868. Meanwhile, with a wavelength of 253,260 – 299,020, a normal model of RMSEC 2.01 was obtained; R2 0.9983; RMSEP 1.89; R2 0.9985 and RMSEC 1; R2 0.9772. So can be concluded below UV-VIS spectroscopic fingerprint analysis combined with chemometrics is able to identify the authentication of the Combretum Indicum Varr. B against the occurrence of adulteration of flowers Combretum Indicum Varr. M at a wavelength of 253.260 – 299.020 nm of normal models.

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Section: Resultsmentioning

confidence: 99%

Authentication of Combretum Indicum Varr. B Flower Against Varr. M with Combined Chemometrics of UV-VIS Spectrophotometric

et al. 2022

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“…𝐴𝑏𝑠𝑜𝑟𝑏𝑎𝑛𝑐𝑒 446 𝑛𝑚 𝐴𝑏𝑠𝑜𝑟𝑏𝑎𝑛𝑐𝑒 269 𝑛𝑚 …………………………………………………………………………... (4) 6. Karoten (Harahap, 2020) Minyak kelapa sawit 0,1g (w) dan dimasukkan ke dalam labu ukur 25mL dan diencerkan dengan etanol, kemudian dimasukkan ke dalam kuvet dan diukur absorbansi spektrofotometri pada panjang 446nm (A). Nilai karoten dapat dihitung pada Persamaan 5.…”

Section: Dobi=unclassified

Pengaruh penggunaan microwave oven terhadap proses sterilisasi buah kelapa sawit

Fortuna,

Sovia,

Rahmi

2024

JRPB

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Sterilisasi tandan buah segar (TBS) kelapa sawit bertujuan untuk menonaktifkan enzim lipase, melunakkan daging buah dan melepaskan buah dari tandannya yang merupakan salah satu proses penting yang mempengaruhi kualitas minyak. Pabrik kelapa sawit umumnya membutuhkan air sekitar 410-455 ton untuk menghasilkan uap steam pada proses sterilisasi menggunakan bejana rebusan dan menghasilkan limbah cair sebanyak 36 ton. Salah satu cara untuk mengurangi limbah cair adalah pengembangan penggunaan gelombang mikro. Penelitian penggunaan microwave pada sterilisasi buah sawit akan menjadi dasar untuk pengembangan desain microwave yang sesuai bagi industri CPO dengan kapasitas ratusan atau ribuan ton. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh waktu sterilisasi dengan microwave oven terhadap karakteristik buah kelapa sawit. Penelitian ini menggunakan Rancangan Acak Lengkap dengan 7 taraf perlakuan dan 4 kali ulangan sehingga diperoleh 28 satuan percobaan. Perlakuan yang digunakan adalah sterilisasi menggunakan bejana rebusan (T0) dan lama sterilisasi buah kelapa sawit menggunakan microwave oven yaitu 3,5,7,9,11 dan 13 menit dan hasilnya dianalisis menggunakan SPSS pada tingkat kepercayaan 95%. Berdasarkan hasil penelitian yang telah dilakukan maka dapat disimpulkan bahwa sterilisasi buah kelapa sawit menggunakan bejana rebusan dan microwave oven berpengaruh nyata terhadap suhu sterilisasi, kadar air, rendemen, Asam Lemak Bebas, Deterioration of Bleachability Index (DOBI) dan karoten. Perlakuan terbaik terdapat pada sterilisasi buah kelapa sawit menggunakan microwave oven selama 7 menit dengan parameter suhu sterilisasi 94,06ºC, kadar air 0,55%, rendemen 17,81%, Asam Lemak Bebas 0,51%, Deterioration of Bleachability Index 3,88nm dan karoten 675,52ppm.

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“…The solution was subsequently measured for its absorbance using a UV-Vis spectrophotometer (Shimadzu 1800) at 446 and 269 nm wavelengths. The DOBI number and β-carotene concentration were calculated using Equations 2 and 3, respectively, with A446 as the absorbance at 446 nm, A269 as the absorbance at 269 nm, and w as the weight of the CPO sample [14].…”

Section: Deterioration Of Bleachability Index (Dobi) Number and β-Car...mentioning

confidence: 99%

Performance Evaluation of Bentonite/Nano-SiO2 Composite as Bleaching Earth in Crude Palm Oil Processing

Yahya,

Nurmalasari,

Aini

et al. 2024

J. Kim. Sains Apl.

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In crude palm oil (CPO) processing industries, bleaching is important to remove unwanted impurities. Most industries use various bleaching earth with 0.8-2% w/v concentration during the bleaching process. As bleaching earth is single-used for the bleaching process, materials with higher adsorption ability are preferable to reduce the use of bleaching earth. This study aimed to evaluate the performance of bentonite/nano SiO2 composite (BE-SiO2) as bleaching earth in the bleaching process of CPO. The prepared BE-SiO2 was used in the bleaching process with various BE-SiO2 concentrations (0.1-1.3% w/v), process duration (0-2.5 hours), and process temperature (70-150°C). From the results, the rise in BE-SiO2 concentration during the CPO bleaching process initially led to a decrease in the β-carotene concentration, acid content, free fatty acids (FFA), and DOBI number up to 1% w/v of BE-SiO2. Subsequently, these parameters exhibited an increase with the addition of BE-SiO2. The bleaching process effectively reduced the β-carotene concentration, acid content, FFA, and DOBI number within the first 1.5 hours of operation. While a higher amount of β-carotene was adsorbed during the adsorption process at higher temperatures, the bleached palm oil (BPO) quality was compromised due to the heat. The results showed that the most effective condition of the bleaching process was performed with 1% w/v BE-SiO2 concentration for 1.5 hours at 90°C. From those conditions, the BPO had a β-carotene concentration of 312.311 ppm, water content of 0.112%, acid number of 0.0076, FFA of 4.864%, DOBI number of 1.311, and red/yellow of 1.5/15.

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Analisa Kandungan Beta Karoten Pada Cpo (Crude Palm Oil) Di Pusat Penelitian Kelapa Sawit (Ppks) Medan Menggunakan Spektrofotometri Uv-Vis

Cited by 3 publications

References 0 publications

Authentication of Combretum Indicum Varr. B Flower Against Varr. M with Combined Chemometrics of UV-VIS Spectrophotometric

Authentication of Combretum Indicum Varr. B Flower Against Varr. M with Combined Chemometrics of UV-VIS Spectrophotometric

Pengaruh penggunaan microwave oven terhadap proses sterilisasi buah kelapa sawit

Performance Evaluation of Bentonite/Nano-SiO2 Composite as Bleaching Earth in Crude Palm Oil Processing

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