Processing pineapple industry produces huge amounts of waste thus contributing to worsen the global environmental problem. Valorising pineapple waste through further processing until it is transformed into valuable pr...Processing pineapple industry produces huge amounts of waste thus contributing to worsen the global environmental problem. Valorising pineapple waste through further processing until it is transformed into valuable products using environmentally friendly techniques is both, a challenge, and an opportunity. The aim of this review is to characterize and highlight the phytochemical constituents of pineapple peel, their biological activity, and to evaluate the current state-of-art for the utilization of pineapple waste from the processing industry for obtaining pharmaceuticals, food, and beverages, biocombustibles, biodegradable fibers, and other different usage. Pineapple residues are rich in many bioactive compounds such as ferulic acid, vitamin A and C as antioxidant, and containing alkaloids, flavonoids, saponins, tannins, cardiac glycoside, steroids, triterpenoids and phytosterols may provide a good source of several beneficial properties, as well as bromelain that showed significant anticancer activity. Also, pineapple processing residues contain important volatile compounds used as aroma enhancing products and have high potential to produce value-added natural essences. Pineapple peels can be used as nonpharmacological therapeutical in the form of processed food and instant drinks;its potent natural antimicrobial properties may be applied for food conservation and as potential leads to discover new drugs to control some infectious microbial. Pineapple waste is a promising source of metabolites for therapeutics, functional foods, and cosmeceutical applications.展开更多
Pineapple is the first fruit crop cultivated in south Benin that greatly contributes for food and nutritional security and farmers’ income. But the lack of homogenous planting material constitutes the major constrain...Pineapple is the first fruit crop cultivated in south Benin that greatly contributes for food and nutritional security and farmers’ income. But the lack of homogenous planting material constitutes the major constraint for improving pineapple yield. <em>In vitro</em> micropropagation is now used in the production of homogenous and free disease planting materials of pineapple. However, the acclimatization to natural condition of pineapple plantlets is an important step in planting material production of this crop. Here, we determined the intrinsic and extrinsic factors which influence the behavior of plantlets during the acclimatization process. For this purpose, plantlets from different categories were selected, trimmed and planted on a horticultural substrate made up of potting soil, white sawdust and compost previously sterilized. The plantlets were then incubated in under acclimatization greenhouse with average temperature of 29<span style="white-space:nowrap;">˚</span>C and 70.2% of humidity. A batch of plantlets was subjected to two different watering solutions: Shive and Robbins solution and NPK 14-6-5 foliar fertilizer. The results obtained initially showed high rate (100%) of survival and growth of the plantlets watered with Shive and Robbins solution against 50% of the plantlets watered with the foliar fertilizer solution. In addition, the plantlets with spread pores exhibiting the characteristics of which the number of leaves varies between 9 and 11, the weight between 1.2 and 1.5 g, the size of 4.5 to 5.5 cm, and a good junction between the aerial part and the root system were those which were successfully grown in acclimatization phase under greenhouse, unlike plantlets with erected pores having lower success rate. This study goes a long way in providing good procedures of acclimatization of homogenous and free disease planting material of pineapple to the famers.展开更多
Women are more likely than men to develop cancer of the breast.Most breast cancer drugs are highly toxic,and treatment can cause side effects.It is imperative to find safe alternative medicines in the pursuit of a cur...Women are more likely than men to develop cancer of the breast.Most breast cancer drugs are highly toxic,and treatment can cause side effects.It is imperative to find safe alternative medicines in the pursuit of a cure for breast cancer.An extract of pineapple contains cysteine proteases known as bromelains.In general,pineapples are regarded as safe foods.From the fruit,stem,and of pineapples,bromelain is produced by multiple endopeptidases.As well as reducing the growth of tumors locally,bromelain severely impaired the cytotoxicity of monocytes in the immune system in the fight against cancer.Specifically,we investigated pineapple’s possible mechanisms of action and its bioactive compounds in breast cancer.展开更多
研究在N、P、K肥基础上增施有机肥、石灰对巴厘菠萝(Ananas comosusr cv.Comte de Paris)产量和品质的影响,通过测定各处理叶绿素含量、干物质累积量以及产量品质等相关指标,分析其影响规律及差异显著性。结果表明,在催花期之前,同时增...研究在N、P、K肥基础上增施有机肥、石灰对巴厘菠萝(Ananas comosusr cv.Comte de Paris)产量和品质的影响,通过测定各处理叶绿素含量、干物质累积量以及产量品质等相关指标,分析其影响规律及差异显著性。结果表明,在催花期之前,同时增施有机肥和石灰处理与只施无机肥(对照)的叶绿素a、叶绿素b和叶绿素总含量均比单独增施有机肥、石灰处理高,且在催花期前后,同时增施有机肥和石灰处理与单独增施石灰处理叶绿素含量差异显著。增施有机肥和石灰对菠萝植株干物质累积的影响在营养生长期表现出与叶绿素含量变化规律相一致的趋势。产量方面,单独增施有机肥和单独增施石灰处理均降低了菠萝产量,而同时增施有机肥和石灰处理产量最高,为91.98 t/hm^2,比对照增产2.11%。品质方面,单独增施有机肥处理的可溶性糖和可滴定酸含量最高,且与其他施肥处理差异显著;单独增施石灰处理的维生素C含量最高;增施有机肥和石灰可提高菠萝果实糖酸比,改善果实风味。综上可知,施用有机肥、石灰处理可以提高菠萝营养品质和风味,但同时施用才可提高菠萝干物质累积量和产量。展开更多
文摘Processing pineapple industry produces huge amounts of waste thus contributing to worsen the global environmental problem. Valorising pineapple waste through further processing until it is transformed into valuable products using environmentally friendly techniques is both, a challenge, and an opportunity. The aim of this review is to characterize and highlight the phytochemical constituents of pineapple peel, their biological activity, and to evaluate the current state-of-art for the utilization of pineapple waste from the processing industry for obtaining pharmaceuticals, food, and beverages, biocombustibles, biodegradable fibers, and other different usage. Pineapple residues are rich in many bioactive compounds such as ferulic acid, vitamin A and C as antioxidant, and containing alkaloids, flavonoids, saponins, tannins, cardiac glycoside, steroids, triterpenoids and phytosterols may provide a good source of several beneficial properties, as well as bromelain that showed significant anticancer activity. Also, pineapple processing residues contain important volatile compounds used as aroma enhancing products and have high potential to produce value-added natural essences. Pineapple peels can be used as nonpharmacological therapeutical in the form of processed food and instant drinks;its potent natural antimicrobial properties may be applied for food conservation and as potential leads to discover new drugs to control some infectious microbial. Pineapple waste is a promising source of metabolites for therapeutics, functional foods, and cosmeceutical applications.
文摘Pineapple is the first fruit crop cultivated in south Benin that greatly contributes for food and nutritional security and farmers’ income. But the lack of homogenous planting material constitutes the major constraint for improving pineapple yield. <em>In vitro</em> micropropagation is now used in the production of homogenous and free disease planting materials of pineapple. However, the acclimatization to natural condition of pineapple plantlets is an important step in planting material production of this crop. Here, we determined the intrinsic and extrinsic factors which influence the behavior of plantlets during the acclimatization process. For this purpose, plantlets from different categories were selected, trimmed and planted on a horticultural substrate made up of potting soil, white sawdust and compost previously sterilized. The plantlets were then incubated in under acclimatization greenhouse with average temperature of 29<span style="white-space:nowrap;">˚</span>C and 70.2% of humidity. A batch of plantlets was subjected to two different watering solutions: Shive and Robbins solution and NPK 14-6-5 foliar fertilizer. The results obtained initially showed high rate (100%) of survival and growth of the plantlets watered with Shive and Robbins solution against 50% of the plantlets watered with the foliar fertilizer solution. In addition, the plantlets with spread pores exhibiting the characteristics of which the number of leaves varies between 9 and 11, the weight between 1.2 and 1.5 g, the size of 4.5 to 5.5 cm, and a good junction between the aerial part and the root system were those which were successfully grown in acclimatization phase under greenhouse, unlike plantlets with erected pores having lower success rate. This study goes a long way in providing good procedures of acclimatization of homogenous and free disease planting material of pineapple to the famers.
文摘Women are more likely than men to develop cancer of the breast.Most breast cancer drugs are highly toxic,and treatment can cause side effects.It is imperative to find safe alternative medicines in the pursuit of a cure for breast cancer.An extract of pineapple contains cysteine proteases known as bromelains.In general,pineapples are regarded as safe foods.From the fruit,stem,and of pineapples,bromelain is produced by multiple endopeptidases.As well as reducing the growth of tumors locally,bromelain severely impaired the cytotoxicity of monocytes in the immune system in the fight against cancer.Specifically,we investigated pineapple’s possible mechanisms of action and its bioactive compounds in breast cancer.
