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Sweet potato leaves

Caterpillars sometimes feed on sweet potato leaves. Spray plants with BTK if caterpillars are feeding. [Pg.221]

Table 8.4 Changes in the chlorophyll content (mg kg ) during microwave cooking of sweet potato leaves... Table 8.4 Changes in the chlorophyll content (mg kg ) during microwave cooking of sweet potato leaves...
CHEN B H and CHEN Y Y (1993), Stability of chlorophylls and carotenoids in sweet potato leaves during microwave cooking , J Agric Food Chem, 41, 1315-1320. [Pg.220]

The overall objective of this chapter is to review the past, present, and future role of the sweet potato (Ipomoea batatas [L.] Lam) in human nutrition. Specifically, the chapter describes the role of the sweet potato in human diets outlines the biochemical and nutritional composition of the sweet potato with emphasis on its (3-carotene and anthocyanin contents highlights sweet potato utilization, and its potential as value-added products in human food systems and demonstrates the potential of the sweet potato in the African context. Early records have indicated that the sweet potato is a staple food source for many indigenous populations in Central and South Americas, Ryukyu Island, Africa, the Caribbean, the Maori people, Hawaiians, and Papua New Guineans. Protein contents of sweet potato leaves and roots range from 4.0% to 27.0% and 1.0% to 9.0%, respectively. The sweet potato could be considered as an excellent novel source of natural health-promoting compounds, such as p-carotene and anthocyanins, for the functional food market. [Pg.2]

FIG. 1 Sweet potato leaves and roots. (A) Sweet potato leaves. (B) Oratige-fleshed sweet potato roots. (C) White-fleshed sweet potato roots (http//encyclopedia.laborlawtalk.com). [Pg.5]

The effects of traditional processing practices on the retention of a-carotene, P-carotene, and total provitamin A carotenoids were studied using amaranth, cowpea, peanut, pumpkin and sweet potato leaves (Mosha et al., 1997). The traditional practice of sun drying and storage in ventilated containers resulted in a significant (P<0.05) decrease in the concentration of total carotenoids, P-carotene, and a-carotene for all the vegetables. Conventional blanching and... [Pg.41]

Wang M, Xiong Y, Zeng M, Li H, Zhang T, Liang Y. GC-MS combined with chemometrics for analysis of the components of the essential oils of sweet potato leaves. Chromatographia 2010 71 891-7. [Pg.275]

Acyl silanes can display disparate behaviour when treated with carbon nucleophiles, even of related types5,61149. For example, when aroyl silanes were treated with a Wittig reagent, none of the expected alkenes was obtained, and the only reaction products isolated were silyl enol ether and triphenylphosphine (Scheme 73)182,183. When alkanoyl silanes were treated with Wittig reagents, however, only the normal olefinated vinyl silane products were isolated (Scheme 74)182-184 Under soluble lithium salt conditions, Z-vinyl silanes were produced with very high selectivities the reaction was used to prepare a pheromone component (50) of the sweet potato leaf folder moth (Scheme 75)183. [Pg.1639]

Ac [56218-72-5]. Sex pheromone produced by female sweet potato leaf folder moth (Brachmia macroscopa). (Z)-form... [Pg.690]

Leafedisk Antifeedant Bioassay Ten l.O cm sweet potato leaf disks were placed in marked wells in an agar-coated petri dish. Five disks were alternatively treated with 10 pi of plant extract (100 pg/cm ) or solvent (acetone or methanol). Five third instar Spodoptera litura (Lepidoptera Noctuidae) larvae per dish and three dishes were used per treatment. The treated dishes were placed in an incubator at 27 C and 75-80% RH for 16-18 hours in darkness. The leaf surface consumed was measured with a video camera interfaced to a personal computer as described earlier (6). The feeding index was calculated as 1= %T / (%T + %C) (%T = % of treated disks consumed, %C = % of control disks consumed). An arbitrary level of I<20 was used as the criteria to determine effective feeding deterrents (7). [Pg.163]

Native to tropical America, sweet potato (I. batatas) is a perennial morning glory vine that has been cultivated for over 5,000 years for its edible tubers in Mexico, Central and lowland South America, and the West Indies. Today, sweet potato is cultivated around the world, especially in developing countries (Plate 4). A decoction made from the leaves of this plant is used in folk remedies as a gargle to treat mouth and throat tumors, and poultices are prepared for inflammatory tumors (64). In Mexico, leaf decoctions are considered to be of cold nature , to reduce excessive body heat, contemporarily defined as such illnesses as diarrhea, dysentery, heart disease, stomach distress, fever, and gastrointestinal infection. In Chinese traditional medicine, the tubers have been used as a medicinal herb to eliminate secretion in perceived abnormal quantities of blood or other body fluids (79). [Pg.142]

The solubility of P-carotene in supercritical fluids has been studied extensively [81 to 85], The extraction of P-carotene from a wide varieties of natural sources has also been described like alfalfa-leaf protein concentrates [86], carrots [34,87], sweet potatoes [88], and algae [89],... [Pg.555]

Fungal disease, sweet potato and, 222 Fungal leaf spot, 347 corn and. 78 Phlox and, 180 thyme and, 226... [Pg.513]

Most PPO preparations from potato, apple, mushroom, and bean possess both monophenol and diphenol oxidase activities, whereas those from tea leaf, tobacco, mango, banana, pear, peach, and sweet cherry have been reported not to act on monohydroxyphenols [28]. Whether a single enzyme system exhibits both mono- and diphenol oxidase activities is still unclear. It was suggested that both cresolase and catecholase functions are catalyzed by a single site. Verdedoncella apple PPO showed both monophenol and diphenol oxidase activities with a reaction mechanism involving one... [Pg.346]

Lead occurring naturally in soil is the main source of lead found in the edible portions of many food crops, such as wheat, potatoes, tomatoes, sweet corn, carrots, cabbage, oats, rice, leaf lettuce, and snapp beans [69]. In all of these crops except leaf lettuce there is no measurable effect on the lead concentration in the edible portions due to atmospheric lead. The non-edible portions of these crops, such as corn husks, bean leaves, and the straw of grain crops showed up to a three-fold increase in lead concentration from atmospheric lead. [Pg.17]


See other pages where Sweet potato leaves is mentioned: [Pg.206]    [Pg.77]    [Pg.1]    [Pg.6]    [Pg.8]    [Pg.8]    [Pg.9]    [Pg.46]    [Pg.77]    [Pg.193]    [Pg.55]    [Pg.115]    [Pg.524]    [Pg.327]    [Pg.4]    [Pg.297]    [Pg.368]    [Pg.520]    [Pg.571]    [Pg.1082]    [Pg.36]    [Pg.36]    [Pg.167]   
See also in sourсe #XX -- [ Pg.206 ]




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