Present study evaluated in vitro antioxidant activity and cytotoxicity of four important Piper species (P. nigrum L., P. chaba Hunter, P. longum L. and P. colubrinum Link.) and six black pepper varieties (Sreekara, Subhakara, IISR Malabar Excel, Panniyur-1, Panchami and IISR Thevam). It was performed with sequential extracts of the dried berries/fruits using n-hexane, chloroform, methanol and w...

A study was conducted to identify the effect of arbuscular mycorrhizal fungi AMF (Funneliformis mosseae) infection on growth of black pepper (Piper nigrum Linn.) rooted cuttings. This experiment comprised of three inoculum rates (75g, 100g, and 150g of sorghum root-soil mixture containing Funneliformis mosseae) per 2kg of soil as well as two cultivars namely Panniyur-1 and GK49. Shoot and root ...

The antibacterial effect of thyme, peppermint, sage, black pepper and garlic hydrosols, widely used in food products as drinks and food additives, were tested for their inhibitory effects against Bacillus subtilis and Salmonella enteritidis. Single and combined hydrosols of previous common herbs were used to evaluate in vitro the antibacterial activity against these pathogenic bacteria. The obt...

Soil microorganisms have important influences on plant growth and health. In this study, four black pepper fields consecutively monocultured for 12, 18, 28 and 38 years were selected for investigating the effect of planting age on rhizosphere and non-rhizosphere soil microbial communities and soil physicochemical properties. The results revealed that the relative abundance of the dominant bacte...

Reducing energy consumption of sensor nodes to prolong the lifetime of finite-capacity batteries and how to enhance the fault-tolerant ability of networks are the major challenges in design of Wireless Sensor Networks (WSNs). In this paper, we present an energy-efficient system of WSNs for black pepper monitoring in tropical areas. At first, we optimized the base station antenna height in order...

In this study, extracts and essential oils of Black and Red pepper and Thyme were tested for antibacterial activity against Escherichia coli O157: H7 and Staphylococcus aureus. Black and Red pepper and Thyme were provided from Iranian agricultural researches center. 2 g of each plant powder was added to 10 cc ethanol 96°. After 24 h, the crude extract was separated as an alcoholic extract and c...

The aim of the experiment was to determine the content of selected phenolic compounds (3,4dihydroxybenzaldehyde, caffeic acid, chlorogenic acid, cryptochlorogenic acid, ferulic acid, gallic acid, neochlorogenic acid, p-coumaric acid, p-hydroxybenzaldehyde , p-hydroxybenzoic acid, protocatechuic acid, salicylic acid, sinapic acid, syringic acid, vanilic acid, vanilin, cinnamic acid) in eight kin...

This study focused on the development of gelatin-based films with incorporation of microcrystalline cellulose as reinforcement material. Clove (Syzygium aromaticum), nutmeg (Myristica fragrans), and black pepper (Piper nigrum) oleoresins containing antimicrobial compounds of natural origin were incorporated into the films. The mechanical, thermal, optical, and structural properties, as well as ...

Spices have been widely used as food flavorings and folk medicines for thousands of years. Numerous studies have documented the antioxidant, anti-inflammatory and immunomodulatory effects of spices, which might be related to prevention and treatment of several cancers, including lung, liver, breast, stomach, colorectum, cervix, and prostate cancers. Several spices are potential sources for prev...

Food nutrients having antioxidant potential have been a major focus of research in recent years because they were regarded as magic bullets that could help to prevent many human diseases such as cancer, arthritis, Alzheimer, Parkinson and cardiovascular diseases, etc. In the present research, the four plants namelytea (Camellia sinensis), ginger (Zingiber officinale), black pepper (Piper nigrum...