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Descrioción anatómica del caracol Purpura panza,empleado Por los tejedores mixtecos.

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Presentación del tema: "Descrioción anatómica del caracol Purpura panza,empleado Por los tejedores mixtecos."— Transcripción de la presentación:


2 Descrioción anatómica del caracol Purpura panza,empleado Por los tejedores mixtecos

3 Source: Natural & Synthetic Organic & Inorganic Vegetal, Animal, Microbial Discovery of mauve by Perkin (purpure of Tyre) review of 80 commercial products (30 never tested before, 26 with mixed results. Only 7 were approved.

4 Impact of Biotechnology on the current colorant Industry Microbial processes Monascus purpureus (polyketide pigments) Phaffia rhodozyma (Astaxanthin) Spirulina maxima (Phycyanin) Dunallella salina ( -carotene) Extraction from seeds and flowers Marigold flowers (lutein) Crocus sativus (saffron; a crocin) Bixa orellana (achiote) Extraction from waste products crawfish, red crab, shrimp (Astaxanthin) Enzymatic process resolution of zeaxanthin Tissue culture Lithospermum eryhrorhizon (shikonin) Genetic Engineering Escherichia coli (indigo)

5 CAROTENOIDES Uno de los grupos de pigmentos naturales mas distribuidos y diversos en la naturaleza. >600 estructuras conocidas. Algunas especies los sintetizan de novo mientras que otras, particularmente animales, solo capaces de absorberlos y metabolizarlos. Síntesis en la naturaleza de unos 100 millones de toneladas anuales Carotenos: C40 cadenas hidrocarbonadas (generalmente anaranjados a rojizos) Xantophylls: Sus derivados oxigenados (generalmente amarillos) De los conocidos, un 10% tiene valor como vitamina A. Además del beta- caroteno, los más importantes entre ellos son el alfa-caroteno y la b eta- criptoxantina. La condición fundamental para que tengan actividad vitamínica es que tengan cerrado y sin oxidar al menos uno de los anillos de los extremos de la estructura. Licopeno, zeaxantina y luteína no tienen valor como vitamina A, aunque son muy importantes como pigmentos, y pueden tener también actividad como antioxidantes.

6 Annato (Bixa orellana L)

7 Bixin (Apocarotenoide) Achiote (Mexico), Urucum (Brasil). también: roucou, onato, bija, orlean, … Extracción tradicional en proceso acuoso a alta temperatura Bixin es soluble en grasa pero no en agua; tratada con alcali, Se hidroliza el ester metílico para producir: norbixin, (dicarboxilic) que es soluble en agua.norbixin

8 Method of removing pigment from annatto seed United States Patent EXAMPLE Bixa seeds (36 seeds, approximately 2.5 g), harvested one day earlier near San Isidro, Costa Rica, Placed in a 250 ml flask with 60 ml of water and 0.1 g of Spark-L (a pectinase produced by Miles Laboratories, Elkhart, Ind., containing polygalacturonase and pectinesterase). The flask was stirred occasionally over a period of 18 hours at ambient temperature (22°-25° C.). The contents of the flask had a good odor with no indication of fermentation having occurred. The aqueous dispersion of the annatto was decanted from the seeds. As a control, the procedure described above was repeated without addition of enzyme. Removal of Pigment Treatment From Seed (%) : Water & pectinase 70% Water (control) 10%



11 astaxanthin capsanthin ß-carotene lutein -Caroteno: sintético: $750 US/Kg natural:$1800 US/Kg Astaxantina (4-5 veces más eficiente) Astaxanthin is produced by microalgae, yeast, salmon, trout, krill, shrimp, crayfish, crustaceans, and the feathers of some birds. $ US/Kgmicroalgaeyeastsalmontrout krillshrimpcrayfishcrustaceans Salmón: mg/Kg alimento (10-15% costo dieta) Cantaxantina: $1500 US/Kg zeaxanthin canthaxanthin Cenpazuchil MERCADO DE ALGUNOS CAROTENOIDES

12 Amounts of astaxanthin found in different organisms [7] [7] Natural Astaxanthin Sources Astaxanthin Concentration(ppm) Salmonids Plankton Krill Arctic shrimp Phaffia Yeast Haematococcus pluvialis ~ 5 ~ 60 ~ 120 ~ 1200 ~ 8000 ~40,000 Haematococcus pluvialis (0.5-2% dry weight) Phaffia rhodozyma Adonis aestivalis ( mg/flower) Brevibacterium lacticola

13 INDIGO The world largest selling textile dye (by vol): 13, 000 ton/year with a value of $200 million dollars. From Mollusks genus Murex European woad plant: Isatis tinctoria Asian: Indigofera tinctoria 1883 Adolf von Baeyer (chemical structure) Nobel prize BASF--- chemical synthesis Genencor recombinant E. coli with 9 genes cloned. Genencor indigo: more expensive than synthetic product




17 Cochineal: the best natural pigment (carminic acid) Insects of the families: Coccoides Aphidoides Porphyropera hameli:(Armenian Re) grows in grasses of Azerbaijan Kermococcus vermilis:(Kermes: grows in oaks) Margarodes polonius:(roots of a grass in various trees in India & Malaysia) Dactylopius coccus:(cacti: Opuntia)

18 80,000 – 100,000 insects/Kg of raw dried cochineal (22% of their dry weight) Todays production only a small fraction of thet in XVI-XIX centuries (eg. Canary islands alone produced 3000 ton in 1875). Extracted with hot water Treatment with protease carmines of cochineal. Strawberry ---- blackcurrent.

19 According to the World Health Organization, dietary vitamin A deficiency (VAD) causes some 250,000 to 500,000 children to go blind each year. More than half those who lose their sight die within a year. VAD compromises the immune systems of approximately 40 percent of children under five in the developing world, greatly increasing the risk of severe illnesses from common childhood infections. VAD is most severe in Southeast Asia and Africa. has become a staple food in many African countries. Globally, rice grain is the world's most important source of human food-feeding more than half of the world's population. Rice is a good provider of calories and protein, but rice scientists have long recognized its micronutrient deficiencies. Milled white rice contains essentially no beta-carotene and unmilled brown rice contains a very small amount. Public rice research institutions in the Philippines, Vietnam, India, Bangladesh, China and Indonesia are in various stages of leading efforts to develop locally adapted Golden Rice varieties.*



22 En el arroz no se expresa la Fitoeno sintasa. La primera variedad tenía el gene del narciso y la fitoeno desaturasa de la bacteria Erwinia pseudonarcissus. La nueva variedad tiene la sintasa del maíz y contiene mas de 30 g de - caroteno por g de arroz. LOS PARADIGMAS

23 More than 250 million sub-Saharan Africans rely on the cassava, a starchy tuber native to South and Central America, as their staple food. Cassava supplies 38.6% of the caloric requirements in some parts of Africa, where hunger and nutrient deficiencies grip the populace and more than 40% of global cassava production takes place. Launched in July 2005 with $7.5 million from the Bill and Melinda Gates Foundations Grand Challenges in Global Health Initiative, the programs overarching goal is to develop what essentially amounts to a super- charged cassava plant varietyone with increased levels of iron, zinc, protein, vitamins, and resistance to the cassava mosaic and brown streak viruses plaguing African farmers. lycopene

24 Cassava ß-Carotene is a dietary precursor of vitamin A that is synthesized by the methylerythritol phosphate (MEP) pathway in plastids of some plant cells. Conventional cassava roots lack some of the essential enzymes necessary to produce ß-carotene. The initial step in the pathway is controlled by deoxyxylulose-5-phosphate synthase (DXS), which is added to Cahoons cassava via the gene dxs, originally sourced from a different plant species. Additional steps generate the C5 isopentenyl diphosphate (IPP) that is used as the building block for the synthesis of the C20 geranylgeranyl diphosphate (GGDP). Phytoene synthase (PSY), the product of an introduced gene (psy) from a bacterial source, combines two molecules of GGDP to form phytoene, which is converted to ß-carotene via lycopene through a series of desaturation, isomerization, and cyclization reactions. The end result is a noticeably more orangey cassava root.

25 Arabidopsis gene, 1-deoxy-d-xylulose 5-phosphate synthase (dxs), which regulates the isoprenoid pathway, a set of biochemical reactions further upstream from the biosynthetic step in which psy is involved. Inserting dxs, which increases the amount of chemical precursors to beta-carotene, was like turning up the whole isoprenoid pathway, Cahoon says. He found that inserting both the psy and dxs genes resulted in a cassava even more orange than the roots with only the psy modificationand with 30 times more beta-carotene than normal roots. The BioCassava Plus program has also recently seen significant progress in its goal to introduce biofortified foods into the developing world. Director Richard Sayre says that the programs pro-vitamin A cassava plants have been approved for field trials in Nigeria, the worlds number one consumer of the food. In July, the country planted between 4000 and 8000 m2 with Cahoons two-gene GM cassava, the first GM product Nigeria has field tested. We are quite proud of that, Sayre says. To advance the BioCassava Plus program to the next stage, Sayre says that more donor money will be needed. He says that the program is planning on approaching other donors, but declined to name them.










35 Capsaicinoids (80%) Carotenoids (73%) Residual flour 96% Ethanol extraction Capsicum flour Residual flour Capsaicinoids (27%) Carotenoids (83%) Capsaicinoids (15%) Carotenoids (0%) Aqueous enzymatic treatment Capsaicinoids (44%) Carotenoids (2%) 30% Ethanol extraction 96% Ethanol extraction Capsaicinoids (26%) Carotenoids (70%) Residual flour 96% Ethanol extraction Capsaicinoids (62%) Carotenoids (1.4%) 30% Ethanol extraction 0

36 Capsaicinoides Compuestos causantes de la pungencia en los chiles (Capsicum annuum). Estimulantes en el tracto digestivo, bloqueadores de la transmisión del dolor y promueven el metabolismo energético. Aplicaciones: Condimentos alimenticios, industria del tabaco, repelentes de protección personal y en compuestos para la agricultura, pinturas marinas, medicamentos contra el dolor. OH MeO N H CH 3 O CH 3 Capsaicina Santamaría R., Reyes Duarte M.D., Barzana E., Fernando D., Gama F.M., Mota M. & Lopez- Munguía A., Journal of Agricultural and Food Chemistry, 48, 7, , 2000.

37 Estructura de los capsaicinoides y su pungencia Análisis sensorial medido en unidades Scoville Cuantificación en ppm por HPLC Modelo de Jancsó-Gabor Generalidades Receptor de capsaicinoides (Caterina y col. Nature, 1997)


39 Conversión de capsaicina en agua utilizando diferentes enzimas Resultados Enzimas Conversión a (%) Lipasas (b) Novozym 677 BG 0.3 Lipasa F 1 Esterasa Diversa Novozym Proteasas (c) Tripsina 0.05 Penicilino acilasa 0.1 a Conversión de hidrólisis de capsaicina en agua, cuantificando la vainillinamina producida después 24 h de reacción a (b) 45ºC y (c) 37ºC.

40 Reacción de hidrólisis de la capsaicina OH MeO N H CH 3 O CH 3 OH MeO NH 2 + CH 3 O CH 3 OH Capsaicina Vainillinamina Acido 8-metil-6-trans-nonanenoico H 2 O Enzima hidrolítica Reyes- Duarte D., Castillo E. Bárzana E. & López-Munguía A. Biotechnology Letters. 22 : , 2000.

41 Síntesis de N-vainillíl oleamida : Efecto de la amina terciaria H 3 CO HONH 2 HCl N + O H 3 CO HO N H N-Vainillíl oleamida (olvanil) DIPEA Lipasa B de Candida antarctica N H C l + H 3 CO HONH 2 Vainillinamina Acido oleico Reyes D.D., Castillo E., Martinez R. & López Munguía A. Biotechnology Letters 24,

42 Síntesis enzimática de capsiato en un solo sistema Lipasa B de Candida antarctica Capsaicina Capsiato Vainillinalcohol Vainillinamina Alcohólisis Hidrólisis y síntesis

43 el canal de calcio T de células espermatogénicas y la relación con su pungencia Efecto de la capsaicina y sus derivados en el canal de calcio T de células espermatogénicas y la relación con su pungencia Sensorialmente, la capsaicina es pungente, su hidrolizado no, ni tampoco el capsiato.

44 Síntesis de Análogos de la Capsaicina Síntesis de amidas con altos rendimientos (>80%) en 2M2B (solvente polar) independientemente de la estructura del análogo. 2 análogos con actividad pungente


46 Análogos de capsaicina : inhibidores de canales Ca2+ T-type Síntesis de Olvanil Síntesis de Capsiato

47 inhibidores de canales Ca2+ T-type Evaluación farmacológica (Colaboración con Alberto Darszon e Ignacio López)

48 Síntesis quimoenzimatica del Fenil-acetil-rinvanil


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