scholarly journals New Sago Palm Starch Resources and Starch Pith Waste Properties

Sago Palm ◽  
2018 ◽  
pp. 309-315 ◽  
Author(s):  
Takashi Mishima
Keyword(s):  
Sago Palm

scholarly journals Microwave-Assisted Pretreatment of Sago Palm Bark

2016 ◽  
Vol 37 (1) ◽  
pp. 26-42 ◽  
Author(s):  
Saleem Ethaib ◽  
Rozita Omar ◽  
Siti Mazlina Mustapa Kamal ◽  
Dayang Radiah Awang Biak ◽  
Syafiie Syam ◽  
...  
Keyword(s):  
Sago Palm ◽  
Microwave Assisted

scholarly journals Photosynthesis of Sago Palm (Metroxylon sagu Rottb.) Seedling at Different Air Temperatures

Agriculture ◽  
2018 ◽  
Vol 8 (1) ◽  
pp. 4 ◽  
Author(s):  
Aidil Azhar ◽  
Daigo Makihara ◽  
Hitoshi Naito ◽  
Hiroshi Ehara
Keyword(s):  
Sago Palm ◽  
Air Temperatures ◽  
Metroxylon Sagu

scholarly journals Conservation and Restoration Guidelines for the Omo Sebua in Bawömataluo Village, South Nias, Indonesia

2016 ◽  
Vol 8 (1) ◽  
pp. 167
Author(s):  
Kazuhiko Nitto ◽  
Yasufumi Uekita ◽  
Benyan Jiang ◽  
Shigeo Oodaira ◽  
Koji Sato
Keyword(s):  
Reinforced Concrete ◽  
Disaster Management ◽  
Electrical Equipment ◽  
Research Subject ◽  
New Materials ◽  
Sago Palm ◽  
Wooden Structures ◽  
Maximum Inclination ◽  
Palm Leaf ◽  
Specific Conservation

<p class="1Body">In recent years, wooden structures have been being gradually replaced by reinforced concrete and brick buildings. Although a conservation system has been established in Indonesia, specific conservation and repair guidelines for traditional wooden buildings have not been well-regulated. This paper takes the <em>omo sebua</em> as a research subject, aims to clarify the deterioration, deformation and their causes, and to propose guidelines for its conservation.</p><p class="1Body">The results of the deterioration and deformation investigation are as following: the maximum inclination of the short pillars is 5/100, and the most common inclination is 2/100. The significant sinkage of the foundation stones reaches 56 cm and the average sinkage is 20~30 cm. The maximum inclination of side pillars is 4/100, and the most common inclination is 2/100. Besides, the corruptions of the roof frame concentrate on the gable wall and termite damages can be seen in the whole building.</p><p class="1Body">Basing on the investigation result, our proposals are as following: 1) conduct a dismantling restoration; 2) recycle the used materials as much as possible to maintain the authenticity of the building; 3) use new materials that are the same as the original ones; 4) rethatch the roofing by sago palm leaf; 5) conduct a structural diagnose, reinforce the structure against an earthquake; 6) include electrical equipment and disaster management in a restoration.</p>

Investigations for the biological control in Fiji of the coconut stick-insect Graeffea crouanii (Le Guillou)

1968 ◽  
Vol 57 (4) ◽  
pp. 567-604 ◽  
Author(s):  
R. W. Paine
Keyword(s):  
Pacific Islands ◽  
Narrow Range ◽  
Solomon Islands ◽  
Pupal Stage ◽  
Stick Insect ◽  
Small Island ◽  
Sago Palm ◽  
Significant Damage ◽  
In Captivity ◽  
Made In

The stick-insect Graeffea crouanii (Le Guillou) is a pest of coconuts of local and sporadic importance in the south Pacific and there have been recent outbreaks on Taveuni Island, in the Fiji group. As there appear to be virtually no parasites of the nymphal stages, a preliminary search was made in 1960 for parasites of other palm-feeding Phasmatids in Melanesia. This revealed the presence of Tachinidae parasitising species of the genera Ophicrania and Megacrania, and in 1963–64 these were studied in the Solomon Islands. The Tachinidae comprise at least two species of Mycteromyiella: M. laetifica (Mesnil) attacking both O. leveri Günth. and a species of Megacrania in the western Solomons, and M. phasmatophaga Crosskey attacking 0. leveri and some other Phasmatid hosts on Guadalcanal. The early stages of both species of Mycteromyiella are briefly described and compared, with notes on their bionomics. There was no evidence of any egg parasite attacking Ophicrania in the Solomons.O. leveri, which is very closely related to G. crouanii, has never caused significant damage to coconuts in the Solomon Islands, except on the small island of Savo, from which its Tachinid parasites appear to be absent. It is concluded that Mycteromyiella, especially M. laetifica, which appears to be fairly specific, may be an important factor in the control of O. leveri in the Solomons.The principal hosts of O. leveri are the sago palm (Metroxylon salomonense) and species of arecoid palms in the forest, on all of which the insect has better scope for concealment than on coconuts. Collections of nearly 6,000 examples of O. leveri from sago palm on Kolombangara island, in the western Solomons, in August 1963-February 1964 showed an average parasitism by Mycteromyiella laetifica of 28 per cent. Eggs of the Tachinid are laid on nymphs of all instars as well as on adults. The host-survival rate was about 30 per cent, for nymphs and 50 per cent, for adults.A small number of parasitised specimens of O. leveri from Kolombangara were released on Savo, but there was no evidence six months later that M. laetifica had become established there.Breeding trials at Honiara showed that O. leveri could be reared successfully in captivity but not M. laetifica, which shows reluctance to mate in cages and has a narrow range of environmental tolerance in the pupal stage, in which a mortality of at least 70 per cent, seems unavoidable under the conditions practicable for transportation of this stage by air.Between October 1963 and March 1964 nearly 960 puparia of M. laetifica were sent to Fiji. About half of them were used for breeding trials, which showed that the Tachinid could be reared through G. crouanii in captivity but could not be maintained. The rest were released on Taveuni, but a further outbreak of G. crouanii during 1965 yielded no evidence that M. laetifica had become established.Material of M. phasmatophaga, which has a more restricted choice of environment than M. laetifica, but also a somewhat greater potentiality for killing its host, was obtained by exposing O. leveri on seedling coconut palms planted in the forest at Honiara. Quantities were insufficient for transmission to Fiji; 150 parasitised hosts were released on Savo but samples of O. leveri collected there six months later gave no indication of its establishment.Despite this initial failure, it is considered that Mycteromyiella could bring about the control of G. crouanii in Fiji and other affected Pacific islands, and the means by which this might be achieved are discussed.

scholarly journals Differential Metabolites Markers from Trunking and Stressed NonTrunking Sago Palm (Metroxylon sagu Rottb.)

2020 ◽  
Vol 14 ◽  
Author(s):  
Hasnain Hussain ◽  
Wei-Jie Yan ◽  
Zainab Ngaini ◽  
Norzainizul Julaihi ◽  
Rina Tommy ◽  
...  
Keyword(s):  
Extraction Method ◽  
Methanol Extract ◽  
Economic Value ◽  
Principal Component ◽  
Leaf Extracts ◽  
Sulfurous Acid ◽  
Sago Palm ◽  
Hexyl Ester ◽  
Metroxylon Sagu ◽  
Metabolite Markers

Background: Sago palm is an important agricultural starch-producing crop in Malaysia. The trunk of sago palm is responsible for the production of the starch reaching maturity for harvesting after ten years. However, there are sago palms that failed to develop its trunk after 17 years being planted. This is known as a stressed “non-trunking” sago palm, which eliminates the economic value of the palms. Objective: The study was initiated to compare the differences in metabolite expression between trunking and non-trunking sago palm and secondly to determine the potential metabolite-makers that are related to differential phenotypes of sago palms. Method: Metabolites were extracted using various solvents and analysed using NMR spectroscopy and GC-MS spectrometry. Data obtained were subjected to principal component analysis. Results: The study determined that differential metabolites expression were detected in the leaf extracts of normal trunking sago palm compared to the non-trunking palms. Metabolite groups which are differently expressed between trunking and non-trunking sago palm are oils and waxes, haloalkanes, sulfite esters, phosphonates, phosphoric acid, thiophene ester, terpenes and tocopherols. GC-MS analysis of Jones & Kinghorn extraction method determined two sets of metabolite markers which explains the differences in metabolites expression of trunking and non-trunking sago palm in ethyl acetate and methanol extract of 89.55% comprising sulfurous ester compounds and 87.04% comprising sulfurous ester, sulfurous acid and cyclohexylmethyl hexyl ester respectively. Conclusion: Two sets of metabolite markers were expressed in the trunking and non-trunking sago palm. These metabolites can potentially be used as markers for identifying normal and stressed plants.

scholarly journals Biological Chemistry of Sago Palm.

1994 ◽  
Vol 68 (4) ◽  
pp. 837-839
Author(s):  
Tetsuo Ozawa
Keyword(s):  
Biological Chemistry ◽  
Sago Palm

Effects of the Food Plant of California Red Scale, Aonidiella aurantii (Mask.) on Reproduction of its Hymenopterous Parasites

1957 ◽  
Vol 89 (5) ◽  
pp. 219-230 ◽  
Author(s):  
J. Morris Smith
Keyword(s):  
Biological Control ◽  
Insect Pests ◽  
Food Plant ◽  
Early Failure ◽  
Aonidiella Aurantii ◽  
Host Insect ◽  
Sago Palm ◽  
Long Period ◽  
Hymenopterous Parasite ◽  
Cycas Revoluta

Discrepancies in the degree of biological control of insect pests where the food plant species of the host were the only known variants in the environment have been subjects of scattered observations in the literature by Morgan (1910), Compere (1936), Gilmore (I938), and others.A long period of speculation on the existence of strains of California red scale, Aonidiella aurantii (Mask.) immune to attack by parasites culminated in the discovery by Flanders (1939a, 1942a) that the hymenopterous parasite Habrolepis rouxi comp. reproduced satisfactorily on A. aurantii on Citrus spp. but that verv few emerged from the same species of scale on sago palm, Cycas revoluta Thunb. This was considered to be the reason for Compere's early failure to bring the hymenopterous parasite, Comperiella bifasciata How, from the Orient to California on scale-infested sago palm; Smith (1942) concluded: “Recognition must be given to the possibility that the host plant may confer on the host insect a kind of immunity to parasitization”.

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