Evaluation of Honey Production of Camellia japonica L.

2021 ◽  
Vol 36 (3) ◽  
pp. 149-159
Author(s):  
Young-Ki Kim ◽  
Hui-Won Yoo ◽  
Moon-Su Park ◽  
Hae-Yun Kwon ◽  
Mahn-Jo Kim ◽  
...  
Molecules ◽  
2021 ◽  
Vol 26 (8) ◽  
pp. 2178
Author(s):  
Ana Margarida Teixeira ◽  
Clara Sousa

Medicinal plants have been used since antiquity to cure illnesses and injuries. In the last few decades, natural compounds extracted from plants have garnered the attention of scientists and the Camellia species are no exception. Several species and cultivars are widespread in Asia, namely in China, Japan, Vietnam and India, being also identified in western countries like Portugal. Tea and oil are the most valuable and appreciated Camellia subproducts extracted from Camellia sinensis and Camellia oleifera, respectively. The economic impact of these species has boosted the search for additional information about the Camellia genus. Many studies can be found in the literature reporting the health benefits of several Camellia species, namely C. sinensis, C. oleifera and Camellia japonica. These species have been highlighted as possessing antimicrobial (antibacterial, antifungal, antiviral) and antitumoral activity and as being a huge source of polyphenols such as the catechins. Particularly, epicatechin (EC), epigallocatechin (EGC), epicatechin-3-gallate (ECG), and specially epigallocatechin-3-gallate (EGCG), the major polyphenols of green tea. This paper presents a detailed review of Camellia species’ antioxidant properties and biological activity.


Author(s):  
Abraão Almeida Santos ◽  
Tate Jason James Hancox ◽  
Marcelo Coutinho Picanço ◽  
Kate Delaporte ◽  
Katja Hogendoorn

2021 ◽  
Vol 13 (15) ◽  
pp. 8305
Author(s):  
Cristiano Ziegler ◽  
Tiago Sinigaglia ◽  
Mario Eduardo Santos Martins ◽  
Adriano Mendonça Souza

Bees play a fundamental role in the ecological balance of ecosystems, due to the pollination process they carry out on crops, including the production of honey. However, the mortality of bees is a significant concern; bee mortality can occur for several reasons, such as pesticides, mites, viruses, climate change, pathogens and a reduction in food resources and nests. The honey bee (Apis mellifera) is the most widely used bee for commercial pollination and honey production. Therefore, the main objective is to compare the development of patent families and article publications related to the reduction in A. meliífera mortality. Data on patent families were collected on the Orbit platform, while data on scientific articles were collected on the Scopus database, with a time interval of 1980–2019. Subsequently, the data were analyzed in order to show the main priority countries, main assignees, and main IPC (International Patent Classification) codes, an analysis of the technology life cycle and the correlation between the data of patent families and articles published. The technologies that help to decrease bee mortality showed a technological maturity rate of 27.15% for patent families data and 53.35% for data from articles published in journals. It was noticed that the principal interest regarding the reduction in A. mellifera mortality is focused on universities, mainly in the United States and China.


2021 ◽  
pp. 007327532199291
Author(s):  
Martino Lorenzo Fagnani

This article analyzes Italian research and experimentation on the economic potential of certain plant species in the late eighteenth and early nineteenth centuries, also providing insight into beekeeping and honey production. It focuses on continuity of method and progress across regimes and on the invisibility of many of the actors involved in the development of agricultural science and food research. Specifically, “continuity” refers to the continuation of certain threads of Old-Regime experimentation by the scientific apparatus put in place during the Napoleonic era. These threads were reworked and strengthened with the new means available to Frenchified Europe. The concept of “invisibility” derives from an expression by Steven Shapin and refers to actors who contributed to the development of agricultural science while remaining in the shadows. These include various types of technicians and members of rural society who supported the scientific work of scholars without receiving overt recognition. Continuity and invisibility were therefore two fundamental components both in the epistemological development of agricultural science and in the improvement of food research. The article analyzes case studies mainly from northern Italy – or rather, the various geopolitical entities existing in this geographical region – during the late Old Regime and the Napoleonic era, comparing them with examples from all over Europe.


Plants ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 1724
Author(s):  
Liqin Pan ◽  
Jiyuan Li ◽  
Hengfu Yin ◽  
Zhengqi Fan ◽  
Xinlei Li

Camellia japonica is a plant species with great ornamental and gardening values. A novel hybrid cultivar Chunjiang Hongxia (Camellia japonica cv. Chunjiang Hongxia, CH) possesses vivid red leaves from an early growth stage to a prolonged period and is, therefore, commercially valuable. The molecular mechanism underlying this red-leaf phenotype in C. japonica cv. CH is largely unknown. Here, we investigated the leaf coloration process, photosynthetic pigments contents, and different types of anthocyanin compounds in three growth stages of the hybrid cultivar CH and its parental cultivars. The gene co-expression network and differential expression analysis from the transcriptome data indicated that the changes of leaf color were strongly correlated to the anthocyanin metabolic processes in different leaf growth stages. Genes with expression patterns associated with leaf color changes were also discussed. Together, physiological and transcriptomic analyses uncovered the regulatory network of metabolism processes involved in the modulation of the ornamentally valuable red-leaf phenotype and provided the potential candidate genes for future molecular breeding of ornamental plants such as Camellia japonica.


2021 ◽  
Vol 13 (11) ◽  
pp. 6109
Author(s):  
Joanne Lee Picknoll ◽  
Pieter Poot ◽  
Michael Renton

Habitat loss has reduced the available resources for apiarists and is a key driver of poor colony health, colony loss, and reduced honey yields. The biggest challenge for apiarists in the future will be meeting increasing demands for pollination services, honey, and other bee products with limited resources. Targeted landscape restoration focusing on high-value or high-yielding forage could ensure adequate floral resources are available to sustain the growing industry. Tools are currently needed to evaluate the likely productivity of potential sites for restoration and inform decisions about plant selections and arrangements and hive stocking rates, movements, and placements. We propose a new approach for designing sites for apiculture, centred on a model of honey production that predicts how changes to plant and hive decisions affect the resource supply, potential for bees to collect resources, consumption of resources by the colonies, and subsequently, amount of honey that may be produced. The proposed model is discussed with reference to existing models, and data input requirements are discussed with reference to an Australian case study area. We conclude that no existing model exactly meets the requirements of our proposed approach, but components of several existing models could be combined to achieve these needs.


2008 ◽  
Vol 54 (5) ◽  
pp. 584-588 ◽  
Author(s):  
Megumi Kuba ◽  
Kazuyo Tsuha ◽  
Keiko Tsuha ◽  
Goro Matsuzaki ◽  
Takeshi Yasumoto

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