Angka Asam Dan Peroksida Minyak Jelantah Dari Penggorengan Lele Secara Berulang

Khoirunnisa, Zulfa; Wardana, Agung Setya; Rauf, Rusdin

doi:10.23917/jk.v12i2.9764

Cited by 18 publications

(18 citation statements)

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“…In the presence of water, fat was hydrolyzed to a form of glycerol and free fatty acids (Ngatemin, et al, 2013). The peroxide value presents the degree of damage to the oil due to the oxidation process (Khoirunnisa, et al, 2019). The peroxides constructed can be calculated as iodometry.…”

Section: Resultsmentioning

confidence: 99%

The Effectiveness of Pineapple Extract (Ananas Comosus) and Kesum Leaves (Polygonus Minus) on the Quality of Coconut Oil (Coconus Nucifera)

2021

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The processed oil from the coconut plant is generally understood as coconut oil. A method is required to produce a product with a higher oil extraction rate and is able to reduce the water content and free fatty acids in the coconut oil production. It is also necessary to add substances that can delay or prevent fat oxidation reactions by generating substances in the form of antioxidants. The method that can be implemented is the enzymatic method employing the bromelain enzyme in a pineapple with the addition of an antioxidants substance from the kesum leaf. The objective of this research is to describe the quality of coconut oil after the addition of pineapple (ananas comosus) and kesum leaves (polygonus minus) extracts. The parameters for describing the quality of the oil are the organoleptic test, the degree of acidity, the oil extract rate, the peroxide number, the saponification number, and the acid number. This research is a quasi-experiment. The samples in this research were coconut oil without the addition of pineapple fruit extract, coconut oil with the addition of pineapple fruit extract without the addition of kesum leaves, and coconut oil with the addition of pineapple fruit extract and kesum leaves as much as 20gr, 30gr and 40gr. Based on the statistical results of the linear regression test, it was discovered that p-value = 0.000 <0.05, so it was concluded that there was an effect of the addition of pineapple fruit and leaves of kesum on acid number content with an effect of 76.4% on the acid number, 71.4% on the peroxide number, and 81.5% to the saponification number. It is recommended to test the water content, free fatty acids, and iodine number.

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Section: Resultsmentioning

confidence: 99%

The Effectiveness of Pineapple Extract (Ananas Comosus) and Kesum Leaves (Polygonus Minus) on the Quality of Coconut Oil (Coconus Nucifera)

2021

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“…Hasil uji kualitas minyak jelantah menunjukkan bahwa parameter bilangan peroksida melebihi standar batas maksimum mutu minyak menurut SNI [9], hal ini sebagai bukti bahwa sampel minyak yang digunakan sudah termasuk kategori rusak. Kerusakan minyak yang diikuti kenaikan angka peroksida ini terjadi disebabkan minyak telah melalui penggorengan secara berulang pada suhu yang tinggi, dimana minyak mengalami reaksi dengan oksigen pada ikatan rangkap dan terjadi reaksi berantai yang terus menerus menghasilkan radikal bebas, sehingga memicu terbentuknya peroksida [10]. Sedangkan, parameter kadar air dan asam lemak bebas pada hasil pengujian menunjukkan bahwa kedua parameter tersebut masih berada dibawah standar batas maksimum mutu minyak, hal ini disebabkan sampel minyak jelantah yang digunakan tidak banyak mengandung air dan lemak.…”

Section: Hasil Dan Pembahasanunclassified

Pengaruh Ekstrak Etanol Daun Asam Jawa (Tamarindus indica L.) terhadap Jantung Tikus Putih (Rattus norvegicus L.) yang Diinduksi Minyak Jelantah

2023

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This study aims to determine the effect of ethanol tamarind leaves (Tamarindus indica L.) om histology and levels of the enzyme lactate dehydrogenase (LDH) in rat hearts induced by used cooking oil.This study used a completely randomized design with 25 male white rats devided into 5 groups: negetive control, positive control, 1, 2 and 3 doses treatment (150 mg/kg BW, 200 mg/kg BW, and 250 mg/kg BW), where each group consisted of 5 replications. The stages of this research were phytochemical screening, total flavonoid test, antioxidant test, oil quality test, measurement of lactate dehydrogenase (LDH) enzyme levels and cardiac histological observations. The data analysis used was one way ANOVA followed by Duncan’s test. The results showed that the dose of ethanol extract of tamarind leaves (Tamarindus indica L.) 250 mg/kg BW was the most optimal dose to reduce histological damage in the form of pycnotic percentage with an average of 30.40% and thickness of the myocardium of the heart with an average of 852.8 um and decreased cardiac lactate dehydrogenase (LDH) levels by an average of 152 U/L. The ethanol extract of tamarind leaves (Tamarindus indica L.) had an effect on the hearts of white rats (Rattus norvegicus L.) induced by used cooking oil.

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“…The acid number portrays the free fatty acids contained in a fat or oil [28]. This acid value can be defined as the basic requirement of KOH to neutralize free fatty acids in 1 g of oil.…”

Section: Characteristics Of Bio-oil From the Multi-feedstock Biomass ...mentioning

confidence: 99%

Preliminary Study on The Bio-Oil Production from Multi Feed-Stock Biomass Waste via Fast Pyrolysis Process

Prasetiawan

Fardhyanti

Fatrisari³

et al. 2023

ARFMTS

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Biomass is a good resource for renewable energy. Biomass can be converted into bio-fuel (bio-oil) through a catalytic fast pyrolysis process. Previous studies only used single feedstock biomass as raw material for bio-oil production. In this study, bio-oil production is based on a multi-feedstock biomass waste consisting of rice husk, sugar cane bagasse, and palm oil empty fruit bunch. The mixture of biomass waste as a raw material is expected to enhance the yield and quality of the bio-oil produced. This study aimed to investigate the bio-oil products obtained from catalytic pyrolysis of the biomass waste mixture. Mixture Design from Design Expert was used to study the effect of biomass composition on the bio-oil products. Each biomass, i.e., rice husk, sugar cane bagasse, and palm oil empty fruit bunch, was previously chopped and sieved into a uniform 60 mesh. The pyrolysis process was conducted at 500°C with an N2 flow rate of 3 L min-1. The mixture of biomass waste husks contains more phenolic compounds than single-feedstock. The chemical characterization also showed that the multi-feedstock bio-oil compound was dominated by aldehydes, esters, and phenolic compounds.

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Angka Asam Dan Peroksida Minyak Jelantah Dari Penggorengan Lele Secara Berulang

Cited by 18 publications

References 1 publication

The Effectiveness of Pineapple Extract (Ananas Comosus) and Kesum Leaves (Polygonus Minus) on the Quality of Coconut Oil (Coconus Nucifera)

The Effectiveness of Pineapple Extract (Ananas Comosus) and Kesum Leaves (Polygonus Minus) on the Quality of Coconut Oil (Coconus Nucifera)

Pengaruh Ekstrak Etanol Daun Asam Jawa (Tamarindus indica L.) terhadap Jantung Tikus Putih (Rattus norvegicus L.) yang Diinduksi Minyak Jelantah

Preliminary Study on The Bio-Oil Production from Multi Feed-Stock Biomass Waste via Fast Pyrolysis Process

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