Results 181 to 190 of about 7,524 (214)

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

Assessing the degradation potential of pineapple stems and leaves by Trichoderma spp.

The Journal of Agriculture and Development
The study aimed to determine suitable substrate ratios and humidities to produce organic fertilizer from the stems and leaves of pineapples using Trichoderma spp. strains (TC). A completely randomized 6 x 3 factorial design was used. The factor (A) was the different supplementation of cellulose-degrading fungi (no supplementation, Tricho-DHCT, TC1, TC2,
Trong D. Nguyen, Xuan T. N. Ly, Nhan C. Tran, Bao C. Mai, Tam M. H. Le, Hiep C. Phan, Nguyen K. T. Tran, Thu M. T. Le, Khuong Q. Nguyen   +8 more
openaire   +1 more source

REACTION MECHANISM OF PYROPHOSPHATE-DEPENDENT PHOSPHOFRUCTOKINASE FROM PINEAPPLE LEAVES

Journal of Food Biochemistry, 1993
Data obtained from initial velocity, product inhibition and dead-end inhibition patterns indicate that the pyrophosphate-dependent phosphofructokinase from pineapple leaves has a rapid equilibrium random mechanism with E:F6P:MgPPi and E:MgPPi:FBP dead-end complexes. The pH dependence of enzyme-reactant dissociation constants suggests that phosphates of
openaire   +1 more source

Investigations on the fibers of pineapple [Ananas comosus (L). Merr.] leaves

Carbohydrate Research, 1981
Abstract Hemicelluloses were isolated from pineapple-leaf fibers under different conditions. Study of the properties of these hemicelluloses gave direct evidence of some ester linkages between the hemicellulose and the lignin in this fiber. An aldobiouronic acid was isolated from this fiber hemicellulose, and characterized as 2- O -(4- O -methyl-α- d
openaire   +1 more source

[Studies on phenolic constituents from leaves of pineapple (Ananas comosus)].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica, 2007
To study the phenolic constituents of the leaves of pineapple.Chromatographic methods were used to isolate compounds from the leaves of pineapple and spectroscopic methods were used to identify the structures of the isolated compounds.7 compounds, ananasate (1), 1-O-caffeoylglycerol (2), 1-O-p-coumaroylglycerol (3), caffeic acid (4), p-coumaric acid (5)
Wei, Wang, Yi, Ding, Dong-ming, Xing, Jin-ping, Wang, Li-jun, Du   +4 more
openaire   +1 more source

Pulping and papermaking using pineapple leaves

2023
openaire   +1 more source

Enhanced production and in-situ removal of butanol during the fermentation of lignocellulosic hydrolysate of pineapple leaves

Industrial Crops and Products, 2021
Kumar Shankar, Kuruba Sreeramulu
exaly