scholarly journals Analisis Kandungan Klorofil Pada Beberapa Posisi Anak Daun Aren (Arenga pinnata) dengan Spektrofotometer UV-Vis

Jurnal MIPA ◽  
2017 ◽  
Vol 6 (2) ◽  
pp. 49
Author(s):  
Lydia Priskila Kamagi ◽  
Julius Pontoh ◽  
Lidya Irma Momuat

Tanaman aren merupakan salah satu tanaman penghasil gula bagi kehidupan manusia.  Tanaman ini merupakan tanaman penghasil gula tertinggi daripada tanaman tebu dan tanaman bit.  Kemampuan tanaman aren dalam memproduksi gula sangat berhubungan dengan kandungan klorofil pada bagian daun. Penelitian ini dilakukan untuk mengembangkan metode analisis klorofil pada daun dan menentukan posisi anak daun yang memiliki kandungan klorofil tertinggi. Analisis kandungan klorofil dilakukan dengan metode ektraksi pelarut yang absorbansinya dibaca pada spektrofotometer UV-Vis. Kandungan klorofil a yang terdapat pada daun aren bervariasi, yaitu berkisar  22 - 39 µg/mL ; 1,5 - 2,3 mg/g ; 633 - 1.000 µmol /m 2 sedangkan untuk klorofil b yang terdapat pada daun aren bervariasi sekitar 6 - 10 µg/mL ; 0,4 - 0,7mg/g ;170 - 293 µmol/m 2.Posisi anak daun pada daun memiliki kandunngan klorofil yang lebih tinggi pada bagian atas, sedangkan yang terendah pada bagian bawah. Pada posisi kiri pada daun aren,kandungan klorofilnya lebih tinggi dibandingkan pada posisi kanan,sedangkan posisi pangkal, tengah, dan ujung pada anak daun hampir sama kandungan klorofilnya.Sugar palm is one of the sugar-producing plants for human life. This plant can produce sugar higher than a sugar-producing plant with sugar cane and beet plant. The ability of sugar palm in producing sugar is related to chlorophyll content in the leaf. This research was conducted to develop the method of chlorophyll analysis in the leaf and determine the position of leaflet that have the highest chlorophyll content. Analysis of chlorophyll content was performed by solvent extraction method that absorbance was read on UV-Vis spectrophotometer. The content of chlorophyll present in palm leaves varies, ranging from 22 - 39 μg /mL; 1.5- 2.3 mg/g or 633- 1,000 μmol/m2 whereas for chlorophyll b present in sugar palm varies from about 6 - 10 μg/mL; 0.4 -0.7 mg/g or 170 - 293 μmol/m2. The leaflet position on the leaves has a higher chlorophyll content at the top, while the lowest is at the bottom. In the left position on the palm leaves, chlorophyll content is higher than the right position, while the position of base,middle,and end of the leaflet leaves almost the same content.

2019 ◽  
Vol 9 (2) ◽  
pp. 76
Author(s):  
Muhammad Tawary ◽  
Julius Pontoh ◽  
Lydia Momuat

Analisis Kandungan Klorofil Pada Anak Daun Tanaman Kelapa (Analysis of Chlorophyll Content in Children Leaves of Coconut Plants) Muhammad Tawary1*), Julius Pontoh1), Lydia I.Momuat1)1)Jurusan Kimia, FMIPA UNSRAT Manado*Email korespondensi: [email protected] Diterima 7 Juli 2019, diterima untuk dipublikasi 10 Agustus 2019 Abstrak Tanaman kelapa banyak dibudidayakan sebagai tanaman pertanian. Tanaman kelapa memiliki nilai ekonomi yang tinggi karena hampir semua bagian tanaman kelapa memiliki manfaat ekonomis. Penelitian bertujuan untuk  mengembangkan metode analisis klorofil pada daun dan menentukan bagian anak daun yang memiliki kandungan klorofil tertinggi. Analisis kandungan klorofil dilakukan dengan metode ektraksi pelarut yang absorbansinya dibaca pada spektrofotometer UV-Vis. Kandungan klorofil a dalam daun bervariasi pada setiap bagian anak daun tanaman kelapa. Kandungan klorofil a pada posisi tengah anak daun kelapa (763.19 µmol/m2) dan kandungan klorofil b (196.22 µmol/m2). Kandungan klorofil a dan b pada setiap bagian anak daun dan posisi kanan dan kiri anak daun memiliki nilai yang relatif sama.Kata kunci: Kelapa, klorofil a, klorofil b Abstract Many coconut plants are cultivated as agricultural crops. Coconut plants have high economic value because almost all parts of coconut plants have economic benefits. The study aims to develop a method of chlorophyll analysis on leaves and determine the part of leaflets which have the highest chlorophyll content. Analysis of chlorophyll content was carried out by a solvent extraction method in which the absorbance was read in a UV-Vis spectrophotometer. The content of chlorophyll a in leaves varies with each part of the leaves of the coconut plant. Chlorophyll a content in the middle position of coconut leaf child (763.19 µmol / m2) and chlorophyll b content (196.22 µmol / m2). The content of chlorophyll a and b in each part of the leaf child and the right and left positions of the leaves have relatively the same value.Keywords: Coconut, Chlorophyll a, Chlorophyll b


2019 ◽  
Vol 9 (1) ◽  
pp. 44
Author(s):  
Muhammad Tawary ◽  
Julius Pontoh ◽  
Lydia Momuat

Analsis Kandungan Klorofil pada Beberapa Jenis Tanaman Palma(Analysis of Chlorophyll Content in Several Types of Palm Plants) Muhammad Tawary1)*, Julius Pontoh1), Lydia Momuat1)1)Jurusan Kimia, FMIPA Universitas Sam Ratulangi,  Manado 95115*Email korespondensi: [email protected] Diterima  15 Februari 2019, diterima untuk dipublikasi 28 Februari  2019 Abstrak Tanaman palma banyak dibudidayakan sebagai tanaman pertanian. Ada beberapa jenis tanaman palma seperti kelapa, kelapa sawit, dan aren. Penelitian ini bertujuan untuk mengembangkan metode analisis klorofil pada daun dan menentukan posisi anak daun yang memiliki kandungan klorofil tertinggi. Analisis kandungan klorofil dilakukan dengan metode ektraksi pelarut yang absorbansinya dibaca pada spektrofotometer UV-Vis. Kandungan klorofil a dalam daun bervariasi pada ketiga jenis tanaman palma, yaitu pada daun kelapa berkisar antara 586.56 sampai 835.75 µmol/m2, daun kelapa sawit 674.47 µmol/m2 sampai 982.98 µmol/m2, dan pada daun aren 1300.82 µmol/m2 sampai 1449.65 µmol/m2. Klorofil b pada daun kelapa berkisar antara 160.79 µmol/m2 sampai 237.86 µmol/m2, daun kelapa sawit 191.36 µmol/m2 sampai 315.63 µmol/m2, dan daun aren 423.29 sampai 543.19 µmol/m2. Kandungan klorofil a pada setiap posisi anak daun ketiga jenis tanaman palma memiliki nilai yang hampir sama sedangkan kandungan klorofil b pada setiap posisi anak daun pada ketiga jenis tanaman palma memiliki nilai yang sedikit berbeda. Kandungan klorofil a dan b pada setiap bagian anak daun aren memiliki nilai yang hampir sama begitupun dengan kelapa dan kelapa sawit. Kandungan klorofil a pada posisi kanan dan kiri daun aren memiliki nilai yang sedikit berbeda sedangkan pada kelapa dan kelapa sawit memiliki nilai yang hampir sama. Kandungan klorofil b pada ketiga jenis tanaman palma tidak memiliki perbedaan.Kata kunci: Palma, klorofil, absorbansi, spektrofometer Abstract Many palma plants are cultivated as agricultural crops. Several types of palm plants, for example coconut, oil palm, and sugar palm. This research was conducted to develop a method of chlorophyll analysis on leaves and determine the position of leaves children who have the highest chlorophyll content. Analysis of chlorophyll content was carried out by a solvent extraction method in which the absorbance was read in a UV-Vis spectrophotometer. TheThe content of chlorophyll contained in coconut leaves varies, namely containing chlorophyll content contained in coconuts varies, which contains 586.56 µmol/m2 to 835.75 μmol / m2, in oil palm leaves 674.47 µmol/m2 to 982.98 μmol / m2, and in palm leaves 1300.82 to 1449.65 μmol / m2. Whereas for chlorophyll b found in coconut leaves varies around 160.79 µmol/m2 to 237.86 µmol / m2, on palm oil leaves 191.36 µmol/m2 to 315.63 µmol / m2, and on palm leaves 423.29 µmol/m2  to 543.19 µmol / m2. The content of chlorophyll a at each position of leaflets on leaves of various types of palma plants has almost the same value while the content of chlorophyll b at each position of leaflets on the leaves of various types of palma plants has slightly different values. The content of chlorophyll a and b in each part of palm leaves has almost the same value as well as coconut and oil palm. Chlorophyll a content in the right and left position of palm leaves has slightly different values while coconut and oil palm have almost the same value. Chlorophyll b content in all three types of palma plants has no difference.Keywords: Palma, chlorophyll, absorbance, spectrophotometer


1972 ◽  
Vol 20 (7) ◽  
pp. 1412-1416 ◽  
Author(s):  
KAZUYUKI HIRANO ◽  
KAZUMI MORI ◽  
NOBUKO TSUBOI ◽  
SATOSHI KAWAI ◽  
TAKEO OHNO

2014 ◽  
Vol 67 (2) ◽  
Author(s):  
Norzita Ngadi ◽  
Noor Yahida Yahya

Pandan (Pandanus amaryllifolius Roxb.) leaves are widely used in Malaysia as a source of natural flavoring.  The major compound contributing to the characteristic flavour of Pandan is 2-acetyl-1-pyrroline (2AP). As the consumer requirement for use of natural flavours, extraction of components from natural sources has been sought. In this study, solvent extraction of 2AP from Pandan leaves was performed. The effect of solvent used during extraction process (i.e. methanol, ethanol, propanol) towards the yield of 2AP was investigated. The presence of 2AP was determined using GCMS. The results obtained showed that ethanol was the best solvent to extract 2AP from Pandan leaves compared to methanol as higher 2AP peak arises from ethanol chromatogram.  However there is no 2AP detected when propanol was used as solvent.  It is believed that polarity of the solvent plays an important role in the extraction of 2AP.


2013 ◽  
Vol 64 (1) ◽  
Author(s):  
Norzita Ngadi ◽  
Nor Aida Yusoff

The study investigated the performance of chitosan and extracted pandan leaves towards treatment of textile wastewater by using flocculation process. Pandan leaves were extracted by using solvent extraction method. Flocculation process was conducted using a Jar test experiment. The effect of dosage, pH, and settling time on reduction of COD, turbidity and color of textile wastewater was studied. The results obtained found that chitosan was very effective for reduction of COD, turbidity, color and indicator for color. The best condition for COD and turbidity removal was achieved at 0.2 g dosage, pH 4 and 60 minutes of settling time. Under this condition, about 58 and 99% of COD and turbidity was removed, respectively. However, the results obtained using extracted pandan was opposite compared to the chitosan. Extracted pandan was not able to remove both COD and turbidity of the waste. 


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