Ekstraksi Dan Penentuan Gugus Fungsi Asam Humat Dari Pupuk Kotoran Sapi

Nurlina, Nurlina; Syahbanu, Intan; Tamnasi, Mirna Tersiana; Nabela, Chyntia; Furnata, Maria Desi

doi:10.26418/indonesian.v1i1.26041

Cited by 6 publications

(10 citation statements)

References 8 publications

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“…cm −l ) [30]. These differences proved that the secondary structure of the mixtur changed after bromelain treatment due to the unfolding of the protein structure cleavage of the protein into peptides.…”

Section: Sem Morphologymentioning

confidence: 90%

The Hydrolysis of Pigment-Protein Phycoerythrin by Bromelain Enhances the Color Stability

Sun

Cui

Wang

et al. 2023

Foods

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Phycoerythrin (PE) is a natural protein–pigment complex with a strong pink color, but it is sensitive to thermal and light variations. In this study, PE was extracted from Porphyra haitanensis in a yield of 0.2% (w/w). The phycoerythrin hydrolysates (PEH) (3–10 kDa) were prepared by enzymatic hydrolysis of PE with bromelain (8000 U/g) at 47 °C for 30 min, with a degree of hydrolysis (DH) of 11.57 ± 0.39% and a color degradation rate of 7.98 ± 0.39%. The physicochemical properties of PEH were evaluated. The UV and fluorescence spectra indicated that bromelain changed the microenvironment around phycoerythrobilin (PEB). The infrared spectrum revealed that the bromelain hydrolysis increased the α-helix content of PEH. The scanning electron microscope showed that bromelain destroyed the dense and smooth structure of PE, resulting in irregular porous structures. The radical scavenging activities of DPPH and ABTS of PEH were increased relative to that of PE (p < 0.05). The thermal (40–80 °C)-, UV (0.5–3 h)-, visible light irradiation (2–8 h)-, and metal ion exposing stabilities of PEH were significantly improved (p < 0.05). This study provides a potential scheme for overcoming the sensitivity of PE to thermal and light variations and facilitates PEH as a natural colorant ingredient in food and pigment applications.

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Section: Sem Morphologymentioning

confidence: 90%

The Hydrolysis of Pigment-Protein Phycoerythrin by Bromelain Enhances the Color Stability

Sun

Cui

Wang

et al. 2023

Foods

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“…Asam humat dapat memberikan pengaruh terhadap proses metabolisme tanaman yaitu dapat meningkatkan laju fotosintesis pada tanaman (Heil, 2005), Asam humat juga dapat meningkatkan kemampuan menyerap unsur hara seperti Fosfor (P) yang berperan untuk pembentukan gabah dan peningkatan produksi tanaman (Ruhaimah et al, 2009). Penggunaan asam humat pada tanah dapat berperan dalam meningkatkan kemampuan penyerapan unsur hara seperti Fosfor (P), Kalium (K), Magnesium (Mg), Natrium (Na), Tembaga (Cu), dan Seng (Zn) (Nurlina, 2018).…”

Section: Pendahuluanunclassified

Pengaruh Pupuk Mikro Majemuk Dan Asam Humat Terhadap Ketersediaan P Dan Hasil Padi Gogo Di Lahan Pesisir

Bertham

Ningrum

Adiprasetyo

2022

JIPI

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[THE EFFECT OF MICRO-COMPOUND FERTILIZER AND HUMIC ACID ON AVAILABILITY OF P AND UPLAND RICE YIELD IN COASTAL LAND] Indonesia’s coastal areas are potential for the agriculture. However, coastal areas have poor physical, chemical and biological soil properties that unfavorable to the growth and yield of plants. Upland rice is a food crop that can be developed on coastal land using humic acid technology and micro-compound fertilizers. This study aims to determinate the effect of micro-compound fertilizers and humic acid on phosphor availability and upland rice yields on coastal land. This research was conducted from August to December 2021 in Beringin Raya Sub-District Muara Bangka Hulu, Bengkulu City. Soil and plant analysis was carried out in the Soil Science Laboratory, Faculty of Agriculture, Bengkulu University. This research was organized in Randomized Completely Block Design (RCBD) with 2 factors. The first factor is micro-compound fertilizer which consists of 3 levels, namely 0, 70 and 140 g/ha and the second factor is humic acid which consists of 2 levels, namely 0 and 8 L/ha. Each treatment combination was reploicated 4 times. The results showed that there was no interaction between humic acid and micronutrient fertilizer on the observed variables. The application of humic acid at 8 L/ha increased phosphor available by 27.55%, the root colonization by 20.65%, the population of microorganisms by 14.77%, the number of productive tillers of 15.72% and the weight of the pithy grain per plant by 31.50% as compared to control. Also, the application of micronutrient fertilizer at 140 g/ha increased the weight of 1000 seeds, the number of productive tillers, the pithy grains by 7.22, 18.53, and 27.77% respectively as compared control. It is recommended that the upland rice variety can cultivate in coastal land with the application of 140 g/ha micronutrient fertilizer combined with 8 L/ha of humic acid.

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“…Perubahan selanjutnya terjadi pada wilayah ikatan rangkap 2 yaitu pergeseran frekuensi 1631,99 cm -1 yang merupakan penciri karboksilat. Penurunan bilangan gelombang mengindikasikan melemahnya ikatan -COOH akibat proses pengomposan menjadi ikatan COO - (Nurlina et al, 2018). Gugus ini mengalami disosiasi H + pada pH tinggi seperti yang terdapat pada kompos sehingga dapat meningkatkan muatan negatif.…”

Section: Gugus Fungsional Kompos Blotong Plus Pupuk Kandang Sapiunclassified

“…Gugus ini mengalami disosiasi H + pada pH tinggi seperti yang terdapat pada kompos sehingga dapat meningkatkan muatan negatif. Perombakan ikatan COOH menjadi COOmengindikasikan bahwa gugus fungsional ini akan dapat meningkatkan kapasitas tukar kation di dalam tanah (Nurlina et al, 2018).…”

Section: Gugus Fungsional Kompos Blotong Plus Pupuk Kandang Sapiunclassified

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Pemanfaatan Blotong Dan Pupuk Sintetik Dalam Memperbaiki Sifat Kimia Ultisol Dan Pertumbuhan Bibit Kelapa Sawit

Septyani

Yasin

Gusmini

2020

JTSL

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Most of the oil palm cultivation in Ultisols who have low fertility, nutrient deficiency and toxicity of micronutrient. The objectives of this research were to explore the interaction between sugarcane filter-cake (blotong) compost with synthetic fertilizer to improving chemical properties of Ultisols, growth of oil palm seedling, and the benefit of compost to save on the use of synthetic fertilizer. This research used a completely randomized factorial design, with two factors and three replication. The first factor was level of compost (0, 0.5, 0.75 kg polybag-1). The second factor was level of synthetic fertilizer (0, 0.25, 0.5, 0.75, 1 recommendation). The result showed that addition of compost till 0.75 kg/polybag in Ultisols could improve chemical properties of Ultisols like pH 6.11 units, organic C by 4.27%, total N by 0.47%, exchangeable-Ca by 7.78 cmolc kg-1 , exchangeable-Mg by 1.01 cmolc kg-1 , exchangeable-K by 0.36 cmolc kg-1 , CEC by 31.94 cmolc.kg-1 and decreased exchangeable-Al till not measurable. Combination of compost and synthetic fertilizer gave the interaction to increasing growth of oil palm seedling and nutrient uptake like tall of stem by 65.17 cm, biomass by 46.38 g, nutrient uptake of N by 62.47g crop-1. From this research recommended addition 0.5 kg polybag-1 compost and 0.5 R synthetic fertilizer to decrease the used of synthetic fertilizer till 50%, so that support soil health and environment.

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Ekstraksi Dan Penentuan Gugus Fungsi Asam Humat Dari Pupuk Kotoran Sapi

Cited by 6 publications

References 8 publications

The Hydrolysis of Pigment-Protein Phycoerythrin by Bromelain Enhances the Color Stability

The Hydrolysis of Pigment-Protein Phycoerythrin by Bromelain Enhances the Color Stability

Pengaruh Pupuk Mikro Majemuk Dan Asam Humat Terhadap Ketersediaan P Dan Hasil Padi Gogo Di Lahan Pesisir

Pemanfaatan Blotong Dan Pupuk Sintetik Dalam Memperbaiki Sifat Kimia Ultisol Dan Pertumbuhan Bibit Kelapa Sawit

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