Papers by Ichsan Suwandhi
Palm Oil, Jul 18, 2018
Oil palm are among the best known and most extensively cultivated plant families, especially Indo... more Oil palm are among the best known and most extensively cultivated plant families, especially Indonesia and Malaysia. Many common products and foods are derived from oil palm, its making them one of the most economically important plants. On the other hand, declining supply of raw materials from natural resources has motivated researchers to find alternatives to produce new materials from sustainable resources like oil palm. Oil palm waste is possibly an ideal source for cellulose-based natural fibers and particles. Generally, oil palm waste such as oil palm empty fruit bunches, oil palm trunk, oil palm shell and oil palm ash are good source of biomaterials. Lack of sufficient documentation of existing scientific information about the utilization of oil palm waste raw materials for biomaterial production is the driving force behind the this chapter. Incorporation of various types of biomaterial derived from oil palm waste resources as reinforcement in polymer matrices lead to the development of biocomposites products and this can be used in wide range of potential applications. Properties and characterization of biomaterial from oil palm waste will not only help to promote further study on nanomaterials derived from non-wood materials but also emphasize the importance of commercially exploit oil palm waste for sustainable products.
Mangrove ecosystems provide important ecological services. However, the sustainability of their e... more Mangrove ecosystems provide important ecological services. However, the sustainability of their ecosystem function is limited by coastal dynamics which in turn are affected by natural and anthropogenic factors. The northern coast of Subang District in West Java has suffered severe abrasion and mangrove degradation. Mitigation efforts so far have not been successful, as the limiting factors of mangrove growth have not been properly considered and most of the area is now permanently flooded. In this study we present a model design of a mangrove greenbelt suggested for the rehabilitation of the northern coast of Subang District, specifically at Legonkulon Subdistrict as case study. The main strategy is to determine the optimal thickness and total area of the greenbelt; and the appropriate zoning and plant composition in order to reduce wave strength and enhance other ecological services. Avicennia marina and Rhizophora mucronata are selected as plant species because of their suitabilit...
Mangrove substrate is the growing media for mangrove vegetation, and is characterized by water sa... more Mangrove substrate is the growing media for mangrove vegetation, and is characterized by water saturation, high salinity, presence of coarse particles, and high organic matter content. Mangrove vegetation can grow in a variety of substrate textures (sand, silt, and clay) which affect the organic matter contained within them. Therefore, mangrove substrate is a determining factor in reforestation efforts. The objectives of this study was to identify substrate characteristics, measure vegetation parameters, and then determine the relationship between vegetation parameters with characteristics of mangrove substrate. The study was conducted in two locations, i.e., Pondok Bali Beach in Subang, West Java as example of a degraded mangrove ecosystem and Pulau Dua Nature Reserve in Serang, Banten as representation of a natural mangrove ecosystem that is still in relatively good condition. The method used in collecting data was by making vegetation analysis plots using purposive sampling with ...
ABSTRAK Litsea cubeba Lour. Persoon merupakan pohon kecil sampai sedang, anggota dari famili Laur... more ABSTRAK Litsea cubeba Lour. Persoon merupakan pohon kecil sampai sedang, anggota dari famili Lauraceae . Pohon ini dikenal sebagai penghasil minyak atsiri potensial untuk industri-industri farmasi dan kosmetika. Kehadiran jenis ini pada areal-areal terbuka bekas gangguan mengindikasikan jenis ini memiliki peran penting terhadap kandungan minyak atsiri yang dihasilkan. Informasi ini dapat digunakan sebagai dasar dalam pengembangan budidayanya. Penelitian ini bertujuan untuk mengetahui rendemen dan komposisi kimia minyak ki lemo dan kaitannya dengan tipe-tipe dan faktor-faktor habitat di Gunung Papandayan. Metode yang digunakan meliputi survey dan eksplorasi dengan menempatkan plot-plot pada setiap habitat untuk memperoleh data-data biofisik, dilanjutkan dengan pengujian di laboratorium untuk memperoleh data minyak atsiri. Sampel-sampel daun diambil pada masing-masing habitat untuk diuji di laboratorium melalui destilasi uap dan dilanjutkan dengan analisis GC-MS untuk memperoleh...
The northe r n coast of Java is a very potential area for mangrove and also a place for migratory... more The northe r n coast of Java is a very potential area for mangrove and also a place for migratory birds from the Asian mainland . As a habitat for birds, mangroves act as a place to find food (feeding ground), nursery (nursery ground), breed, or just rest. Pulau Dua Nature Reserve is a protected mangrove ecosystem on the northern coast of Java which has become a center for b ird activity , so is also known as Bird Island. As a nature reserve, the mangrove ecosystem in Pulau Dua Nature Reserve i s considered to be a pristine ecosystem, so this study is important to find out the relationship between mangrove vegetation and the presence of birds. This study aim ed to determine the preference of birds in making use of man grove vegetation, especially in terms of tree canopy parameters which include canopy volume, percent canopy cover, and number of branches. This study was approached by conducting bird abu n dance and species inventory using a point count method with in a 50 m radius. T...
Sudrajat DJ, Suwandhi I, Siregar IZ, Siregar UJ. 2018. Variation in seed morpho-physiological and... more Sudrajat DJ, Suwandhi I, Siregar IZ, Siregar UJ. 2018. Variation in seed morpho-physiological and biochemical traits of Java olive populations originated from Java, Bali, Lombok, and Timor Islands, Indonesia. Biodiversitas 19: 1004-1012. Java olive (Sterculia foetida L.) is one of the promising non-edible feedstocks for biodiesel production. Utilization of this tree species for plantation is limited due to knowledge gaps in many fundamental aspects of seed properties. The aim of the study was to determine the variation that may exist among java olive seed collected from Bogor, Palimanan, Tuban, Gilimanuk, Pemenang and Naioni populations, and to analyze correlations between one or many seed morpho-physiological and biochemical traits. Analysis of variance showed significant differences of seed morphological and biochemical traits, except for the germination capacity. Seed morphological traits were not significantly correlated with agro-climate factors, while some of biochemical trait...
Journal of Mathematical and Fundamental Sciences, Dec 1, 2014
The objective of this research was to determine the yield and chemical composition of Litsea cube... more The objective of this research was to determine the yield and chemical composition of Litsea cubeba essential oil harvested from different habitat types on Mount Papandayan, West Java, Indonesia. The methods used were determination of sample plots at each habitat, followed by laboratory testing. Leaf samples were taken from each plot, the oil was extracted in the laboratory using steam distillation, which was subsequently analyzed by GC-MS. The results showed that the yield of essential oil was high (2.76-9.33%). The three dominant chemical compounds found were eucalyptol (16.97-55.78%), αterpinenyl acetate (7.27-20.44%), and sabinene (14.45-68.05%). The results confirmed the expectation that Litsea cubeba essential oils extracted from Litsea cubeba trees growing in various habitats on Mount Papandayan would show a variety in yield and chemical composition.
Palm Oil
Oil palm are among the best known and most extensively cultivated plant families, especially Indo... more Oil palm are among the best known and most extensively cultivated plant families, especially Indonesia and Malaysia. Many common products and foods are derived from oil palm, its making them one of the most economically important plants. On the other hand, declining supply of raw materials from natural resources has motivated researchers to find alternatives to produce new materials from sustainable resources like oil palm. Oil palm waste is possibly an ideal source for cellulose-based natural fibers and particles. Generally, oil palm waste such as oil palm empty fruit bunches, oil palm trunk, oil palm shell and oil palm ash are good source of biomaterials. Lack of sufficient documentation of existing scientific information about the utilization of oil palm waste raw materials for biomaterial production is the driving force behind the this chapter. Incorporation of various types of biomaterial derived from oil palm waste resources as reinforcement in polymer matrices lead to the development of biocomposites products and this can be used in wide range of potential applications. Properties and characterization of biomaterial from oil palm waste will not only help to promote further study on nanomaterials derived from non-wood materials but also emphasize the importance of commercially exploit oil palm waste for sustainable products.
Forests
Carbon sequestration and storage are among the most important ecosystem services provided by trop... more Carbon sequestration and storage are among the most important ecosystem services provided by tropical forests. Improving the accuracy of the carbon mapping of tropical forests has always been a challenge, particularly in countries and regions with limited resources, with limited funding to provide high-resolution and high-quality remote sensing data. This study aimed to examine the use of land-cover and elevation-based methods of aboveground carbon mapping in a tropical forest composed of shrubs and trees. We tested a geostatistical method with an ordinary kriging interpolation using three stratification types: no stratification, stratification based on elevation, and stratification based on land-cover type, and compared it with a simple mapping technique, i.e., a lookup table based on a combination of land cover and elevation. A regression modelling with land cover and elevation as predictors was also tested in this study. The best performance was shown by geostatistical interpolat...
Biodiversitas Journal of Biological Diversity
Results of the provenanceprogeny test in seedling and field test of white jabon (Neolamarckia cad... more Results of the provenanceprogeny test in seedling and field test of white jabon (Neolamarckia cadamba) at Parung Panjang, Bogor District, West Java Province, Indonesia are reported and discussed. Twelve provenances representing 105 families were tested in nursery and field using randomized complete block design. Seedling height, root collar diameter, sturdiness quotient, shoot dry weight, root dry weight and shoot-root ratio was measured at four months, while as the growth assessment was carried out on survival, height and stem diameter at the age of 2 and 4 years. The result showed that genetic variation was found to be higher among families within provenances than the variation among provenances for all parameters indicating the family effect had the highest contribution on the growth and survival. Based on family and provenance mean, most of the seedling parameters were significantly correlated with the others, but most of seedling parameters were not significantly correlated with plant growth at 2 and 4 years. The longitudinal cline was significantly correlated with shoot dry weight, root dry weight, and shoot-root ratio indicated that the white jabon seeding parameters in natural populations may have greater in humid (higher precipitation) than in drier locations. This was likely to suggest that the family or provenance selections based on seedling growth in the nursery may not be very effective because heritability of most growth variables is likely to be low.
Jurnal Teknologi Industri Pertanian, Mar 3, 2015
Litsea cubeba Lour. Persoon is a small to medium tree, belongs to Lauraceae family. This tree is ... more Litsea cubeba Lour. Persoon is a small to medium tree, belongs to Lauraceae family. This tree is wellknown as a source of potential essential oil for pharmacy and cosmetic industries. The presence of this species in disturbed areas suspected to have an important role on the essential oils produced. This information can be used as a strategic base for cultivation development, to supports pharmacy industries materials. This study wasaimed to determine the yield and composition of L. cubeba essential oils, and to analyze the relationship of the oil with habitat types and factors in Papandayan Mountain. Methods used were determining sample plots at each habitat purposively to obtain a biophysical data, followed by a laboratory test. Leaf samples were taken from each plot then tested in a laboratory using steam distillation, which was followed by GC-MS analysis. Multivariate analysis of variance (MANOVA) was used to determine the relationship between habitat types and essential oil production, followed by multiple regression analysis for determining bio-physics factors which influence the essential oil production. The results showed that the yield of L. cubeba essential oils was vary from 3.52% to 7.48% in average. Generally, the chemical compositionswere almost same in all habitat types. Ecologically, this tree had a preference for the 7 habitat factors, i.e. air humidity, light intensity, slope, C/N ratio of soil, cation exchange capacity (KTK), clay portion and canopy. The habitat factors had a significant influence on the yield and chemical composition of essential oil.
Journal of Mathematical and Fundamental Sciences, 2014
The objective of this research was to determine the yield and chemical composition of Litsea cube... more The objective of this research was to determine the yield and chemical composition of Litsea cubeba essential oil harvested from different habitat types on Mount Papandayan, West Java, Indonesia. The methods used were determination of sample plots at each habitat, followed by laboratory testing. Leaf samples were taken from each plot, the oil was extracted in the laboratory using steam distillation, which was subsequently analyzed by GC-MS. The results showed that the yield of essential oil was high (2.76-9.33%). The three dominant chemical compounds found were eucalyptol (16.97-55.78%), αterpinenyl acetate (7.27-20.44%), and sabinene (14.45-68.05%). The results confirmed the expectation that Litsea cubeba essential oils extracted from Litsea cubeba trees growing in various habitats on Mount Papandayan would show a variety in yield and chemical composition.
Litsea cubeba Lour. Persoon is a small to medium tree, belongs to Lauraceae family. This tree is ... more Litsea cubeba Lour. Persoon is a small to medium tree, belongs to Lauraceae family. This tree is wellknown as a source of potential essential oil for pharmacy and cosmetic industries. The presence of this species in disturbed areas suspected to have an important role on the essential oils produced. This information can be used as a strategic base for cultivation development, to supports pharmacy industries materials. This study wasaimed to determine the yield and composition of L. cubeba essential oils, and to analyze the relationship of the oil with habitat types and factors in Papandayan Mountain. Methods used were determining sample plots at each habitat purposively to obtain a biophysical data, followed by a laboratory test. Leaf samples were taken from each plot then tested in a laboratory using steam distillation, which was followed by GC-MS analysis. Multivariate analysis of variance (MANOVA) was used to determine the relationship between habitat types and essential oil production, followed by multiple regression analysis for determining bio-physics factors which influence the essential oil production. The results showed that the yield of L. cubeba essential oils was vary from 3.52% to 7.48% in average. Generally, the chemical compositionswere almost same in all habitat types. Ecologically, this tree had a preference for the 7 habitat factors, i.e. air humidity, light intensity, slope, C/N ratio of soil, cation exchange capacity (KTK), clay portion and canopy. The habitat factors had a significant influence on the yield and chemical composition of essential oil.
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Papers by Ichsan Suwandhi