The chemical composition of leaf fibers of curaua (Ananas erectifolius), an herbaceous plant native of Amazonia, was studied. Special attention was paid to the content and composition of lignin and lipophilic compounds. The analysis of lignin in the curaua fibers was performed in situ by pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) and showed a lignin composition with a p-hydroxyph...

In spite of the fact that commercial bromelain supplements are available in the market, to date, none of them are produced and formulated from recombinant forms. They are extracted and purified (often partially) from the stem and fruit of pineapple (Ananas comosus). This makes the production of bromelain very difficult, less reliable, often contaminated and expensive. In this study, a recombina...

The pineapple (Ananas comosus) is cold sensitive. Most cultivars are injured during winter periods, especially in sub-tropical regions. There is a lack of molecular information on the pineapple's response to cold stress. In this study, high-throughput transcriptome sequencing and gene expression analysis were performed on plantlets of a cold-tolerant genotype of the pineapple cultivar 'Shenwan'...

Enzyme stability is critical in biotechnology, pharmaceutical and cosmetic industries. Investigations on this subject have drawn attention because of its practical application. Bromelain is a thiol-endopeptidase, obtained from pineapple (Ananas comosus), known for its clinical and therapeutic applications, particularly to selective burn debridement and improvement of antibiotic action and anti-...

Kemampuan Isolat bakteri terpilih yang berasal dari ekstrak suspensi limbah agroindustri dalam menghambat tingkat serangan Phytophthora sp. secara inplanta dan pemacu pertumbuhan tanaman nanas (Ananas comosus L.) sangat penting untuk dipelajari. Penelitian ini bertujuan mempelajari kemampuan isolat asal rimpang tandan kosong kelapa sawit meningkatkan L.). dilakukan di Laboratorium Lapang Terpad...

Bioactive compounds and antioxidant capacities of “Phulae” and “Nanglae” pineapple (Ananas comosus L. Merr) which are important geographical indications of Chiang Rai, Thailand were investigated. Two pineapple varieties were collected at 20-40 % yellow peel colour. Total soluble solids (TSS), titratable acidity (TA), total polyphenols, β-carotene, vitamin C and antioxidant capacity (ferric redu...

Several plants are used in folk medicine to treat gastrointestinal disorders. Ananas ananassoides (Baker) L.B. Smith (Family Bromeliaceae) is a medicinal plant commonly used in the central region of Brazil against gastric pain. We evaluated two extracts (methanol [MeOH] and dichloromethane [DCM]) obtained from the leaves of A. ananassoides for their ability to protect the gastric mucosa against...

Electrodeposition of zinc on mild steel in acid chloride solution using as additive, different concentrations of ananas comosus (pineapple) juice extracts, was investigated. Different additive concentrations, plating time, and constant pH conditions were used for the experiments. The electrodeposition of zinc on mild steel was performed using a DC – supply. The surface of the plated steel was e...

Background Bromelain is the generic name given to the set of derived endopeptidases belonging to members of the Bromeliaceae family, which belongs to the pineapple (Ananas comosus), being able to break the peptide bond, separating proteins and amino acids [1]. Bromelain possesses a wide range of therapeutic benefit as property of facilitating digestion of proteins, meat softening, ability to fa...