Results 171 to 180 of about 7,592 (208)

Pineapple (Ananás comosus) leaves ash as a solid base catalyst for biodiesel synthesis

Bioresource Technology, 2020
Homogeneous catalysts used for biodiesel synthesis have several limitations, including non-recoverability/reusability, saponification, emulsification, equipment corrosion, and environmental pollution. To overcome these limitations, we synthesized a novel catalyst via calcination of pineapple leaves waste. This catalyst was characterized by X-ray powder
Flavio A De Freitas, FRANCISCO Nobre, Stefan Iglauer   +2 more
exaly   +4 more sources

Structure and Characteristics of Pineapple Leaf Fibers Obtained from Pineapple Leaves

Advanced Materials Research, 2014
Pineapple leaf fiber is a nature hemp leaf fiber extracted from pineapple leaves. Its structural characteristics was investigated by means of scanning electron microscope (SEM), X-ray diffraction (XRD), Differential scanning calorimetry (DSC) and thermogravimetric analysis (TG).
Chao Hong Dong, Zhou Lv, Liang Zhang, Hong Jie Shen, Na Na Li, Ping Zhu   +5 more
openaire   +1 more source

Preparation and characterization of irradiated magnetic pineapple leaves for paper production

AIP Conference Proceedings, 2021
Deforestation issues were increased dramatically every year especially in order for the production of paper. This was caused by the demand for making paper and furniture from wood sources. The supply of paper nowadays all depends on the wood. This experiment has been conducted to analyses the viability of magnetic pineapple leaves paper as a ...
Amirul Azan Mohd Sufian, Siti Amira Othman   +1 more
openaire   +1 more source

PRE- AND POSTHARVEST METABOLISM OF CROWN LEAVES OF PINEAPPLE FRUIT

Acta Horticulturae, 2011
Crown burn on exported pineapple fruit causes serious economical losses. In this study, crown burn occurrence was hypothesized to be related to Crassulacean Acid Metabolism (CAM). However, the functioning of this metabolism in the crown leaves remained unexplored.
E. Londers, J. Ceusters, C. Godts, M.P. De Proft, B. Van De Poel   +4 more
openaire   +1 more source

ON PARAMETRIC STUDY OF FLUID LEAVES AND FLUID PINEAPPLE

International Journal of Fluid Mechanics Research
Liquid chain is a commonly known phenomenon, and it is found to be formed under free fall or due to impact of liquid on surface. Usually, these liquid chains have rim and lamina, which are explained by instabilities. In this article, we examined a variant of liquid chain and carried a parametric study experimentally. Since this phenomenon is reason for
Vijayakumar Mathaiyan, Vijayanandh Raja, Beena Stanislaus Arputharaj   +2 more
openaire   +1 more source

Cell wall alterations in the leaves of fusariosis-resistant and susceptible pineapple cultivars

Plant Cell Reports, 2010
Fusariosis, caused by the fungus Fusarium subglutinans f. sp. ananas (Syn. F. guttiforme), is one of the main phytosanitary threats to pineapple (Ananas comosus var. comosus). Identification of plant cell responses to pathogens is important in understanding the plant-pathogen relationship and establishing strategies to improve and select resistant ...
Glória Maria, de Farias Viégas Aquije, Poliana Belisário, Zorzal, David Shaun, Buss, José Aires, Ventura, Patricia Machado Bueno, Fernandes, Antonio Alberto Ribeiro, Fernandes   +5 more
openaire   +2 more sources

Pyrophosphate-dependent 6-phosphofructokinase, a new glycolytic enzyme in pineapple leaves

Biochemical and Biophysical Research Communications, 1979
Abstract Pineapple leaves contain a pyrophosphate-dependent 6-phosphofructokinase which has been partially purified and characterized. In crude extracts the pyrophosphate-dependent activity is 10 to 20-fold higher than the ATP-dependent activity. The partially purified activity is near 2.5 μmol Fru-1,6- P 2 formed/min/mg protein.
N W, Carnal, C C, Black
openaire   +2 more sources

Metabolic profile and cytotoxicity of non-polar extracts of pineapple leaves and chemometric analysis of different pineapple cultivars

Industrial Crops and Products, 2018
Abstract The use of co-products from the fruit agroindustry as a source of bioactive molecules presents economic advantages, since these compounds are highly available and inexpensive. Therefore, the present study aimed to evaluate their qualitative chemical composition followed by multivariate analysis, and to correlate the results with those of the
Jhonyson Arruda Carvalho Guedes, Elenilson de Godoy Alves Filho, Tigressa Helena Soares Rodrigues, Maria Francilene Souza Silva, Fernanda Vidigal Duarte Souza, Lorena Mara Alexandre e Silva, Ricardo Elesbão Alves, Kirley Marques Canuto, Edy Sousa de Brito, Cláudia do Ó Pessoa, Ronaldo Ferreira Nascimento, Guilherme Julião Zocolo   +11 more
openaire   +1 more source

[New cerebroside from leaves of pineapple].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica, 2008
To study the chemical constituents of the leaves of pineapple.Chromatographic methods were used to isolate compounds from the leaves of pineapple and spectral methods were used to identify the structures of the isolated compounds.Compound 1 was isolated from the leaves of pineapple. It was identified as 1-O-beta-D-glucopyranosyl-(2S, 3R, 4E, 11E)-2-[(2(
Jin-Ping, Wang, Hong-Ying, Wang, Li-Jun, Du, Yi, Ding, Dong-Ming, Xing, Wei, Wang   +5 more
openaire   +1 more source

Isolation and Extraction of Microcellulose from Pineapple Leaves Fiber

Mechanics Exploration and Material Innovation
Microcellulose, a natural fiber, has gained attention due to its ability to be isolated from various sources. Cellulose, derived from plant cell walls, is a promising alternative to synthetic materials due to its strength and stability. Isolating and extracting microcellulose from pineapple leaf fibers (PLF) is essential to harness its potential.
null Randis, Dian Mughni Fellicia, Tatag Yufitra Rus, Abdul Mudjib Sulaiman   +3 more
openaire   +1 more source