UV-Vis spectrophotometry and chemometrics as tools for recognition of the biochemical profiles of organic banana peels (Musa sp.) according to the seasonality in southern Brazil

Banana (Musa sp.) has received wide interest in popular and scientific medicine because of its rich composition in bioactive metabolites, e.g., phenolic compounds, found in interesting concentrations in its peel. Banana peel is a residue that is under-exploited by the industry. Thus, with the intention to give a destination to this by-product towards health care or cosmetics industries, we evaluated its aqueous extract (AE) as a source of bioactive phenolic compounds, aiming at to apply them in future studies of biological activities. For that, in this study samples of banana peels were chemically profiled throughout the year to identify the best harvest time of those biomasses regarding their phenolic composition. In this sense, we used additional information on the chemical heterogeneity of the samples determined by the seasoning, through a set of analytical and climatic data to elaborate chemometric models, supported by bioinformatics tools. Through PCA and HCA analyzes, it was detected that low temperatures; normally observed in winter; strongly modulate the banana metabolism, leading to increased amounts of phenolic compounds, and improving the antioxidant activity of the banana peel AE. The samples collected during the months of winter showed a similar profile and a relatively high concentration of phenolic compounds with potential for future studies of biological activities.CAPES -Coordenação de Aperfeiçoamento de Pessoal de Nível Superior(407323/2013-9)info:eu-repo/semantics/publishedVersio

Universita degli Studi - L'Aquila Facolta di Economia Dip. di Sistemi ed Istituzioni per l'Economia *****

In this short pa er, (Kula tila ka , 1988) model of FMS ma na'G ent is reinterpreteda sa rea options dyna mic progra ming (DP) version of tr a itiona l Cost Volume Profit (CVP)a na lysis. Numerica exa ples replica e results reported in cha ter 4exa ple 1.H.a nd cha ter 7 of (Dixit a d Pindyck, 1994). Moreover,a di#erent version of (Kula tila ka , 1988) numerica exa ple is a a yzed. Results include not only the va lue of the flexiblepla nt, decomposed into its ba se va luea nd the va lue of the flexibility options (na melya ba ndonment option, production mode switching option, mothba lling optiona nd wa iting to invest option), buta lso mode bounds (threshold curves)a re derived not only for the beginning time but a lso for the whole life of the project. In conclusion, thispa per shows how much powerful is Kula tila ka 's Genera l Rea l Option Pricing Model (GROPM) in rea ching through simple numerica l methods resultstha t others, e.g. (Dixita nd Pindyck, 1994), get through very di#cult symbolic stocha stic a gebr a JEL classification code:G13, G31. # A previous version of this paper was circulatedun4 r the title Kulatilaka '88 as a CVP Analysis in a Real Options Framework: A Review, GAUSS tm Codes and Numerical Examplesan d it is posted on http://papers.ssrn .com. The author wishes to than k participan ts to AFFI 2001, Namur, E; occon i Corporate Fin an ce Autumn 2001 Meetin g,Milan , Ita; EWGFM Autumn 2001 Haarlem, NL; Giardin o Giusti Semin ars Autumn 2001, Veron a, Ita for helpful commen ts an d suggestion s. The usual disclaimer applies

Model business letter, e-mails rn other business documents=cara membuat surat, E-mail, dan dokumen bisnis lain berbahasa inggrisa

Judul asli : Model business letters, E-Mail rn Other business documentxix, 502 p. : il.; 28 c

België : visie '80 : orgaan van het Vlaams Kristen Demokratisch Studentenverbond.

Met speciale uitgave ter gelegenheid van Thé-Dansant-29 nov. 196

Ludv. Koch.

FeBr2 has reacted with an equivalent of mnt(2-) (mnt = cis-1,2-dicyanoethylene-1,2-dithiolate) and the alpha-diimine L (L = 1,10'-phenantroline, 2,2'-bipyridine) in THF solution, and followed by adding of t-butyl-isocyanide to give [Fe(mnt)(L)(t-BuNC)(2)] neutral compound. The products were characterized by infrared, UV-visible and Mossbauer spectroscopy, besides thermogravimetric and conductivity data. The geometry in the equilibrium was calculated by the density functional theory and the electronic spectrum by the time-dependent. The experimental and theoretical results in good agreement have defined an octahedral geometry with two isocyanide neighbours. The pi ->pi* intraligand electronic transition was not observed for cis-isomers in the near-IR spectral region